Taki, Alastair Reid, Waldemar Januszczak, John Dugdale, Michael Prescott, Victoria McKee, Barbara Hall, Nigel Botherway, Dan Pearson, John Peter, Walter F Stowy, Pam Barrett, Emma Moore, Amanda Ursell, Paul Nuki Correspondent, John Jay, Charles Sonabend, Susan d'Arcy, John Hughes, Emine Saner, Frank Whitford, J Bennett, Victoria O'brian, Dr Alexandra Morgan, Ferdinand Mount, Alistair Scott, Addison de Witt, Tanla Alexander, Christopher Finch, Lucy Hughes-Hallett, David Smith, Sally Payne, Nick Pitt, Joe Lovejoy Correspondent, Penny Wark, Piers Birtwhistle, Sebastian Hamilton, Andrew Sullivan, Michael Thrasher, Neil Wormald, David James Smith, Stephen Grey, Edward Welsh, Mary Wilson, Sid Watkins, Karen Robinson, Clare Bayley, Andrew Grice Political Editor, Edward Platt, Tony Allen-Mills, Ernst Sommer, Jane Thynne, Susan d'ARCY, Anthony Sattin, Robert Winnett, Irwin Stelzer, Sarah Higgins, Mark Ottaway, Roger Anderson, Deryk Brown, Stephen Hayward, Marian Phillips, David Ljunggren, Robert Hewison, David Dougill, Diana Collins, David Hewson, Ciaran Byrne, Harvey Porlock, Yvonne Ridley, Margaret Coles, Margarette Driscoll, Hugh Canning, Jeremy Clarkson, David Nokes, Peter Conradi, Christine Stopp, Louise Taylor, Daniel Sokol, Edward Porter, Robert Harris, Michael Jones, Nick Moon, Port Moresby, Malt loaf, Liz Jones, Peter Hadfield, Jonathan Bruce, George Perry, Michael Davidson, Kevin Connolly, Graham Otway, Robin Marlar, Joanna Griffiths, Nick Gardner, Shelley von Strunckel, McLivanney's, David Sweetman, Paul Nuki Consumer Affairs Correspondent, Rob Steen, Beverley D'Silva, Ruth Bettina Birn, Nigel Summers Chief Executive, Ian MacKinnon, Grace Fitzgerald, Michael Travis, Paul Donovan, Jack Millan, Steve Waugh, Jeff Randall, Smita Talati, Paul Driver, James Adams, Olga Craig, Derek Clements, Michael Woodhead, Maeve Sheehan, Nicholas Hellen, Ian Hawkey, Ian Chadband, Christopher Morgan, David Leppard, Tim Kelsey, Walter Grey, Michael Prescott Chief Political Correspondent, Tom Shone, Mark Edwards, Rufus Olins, Chris Gilchrist, Susan Clark, Stephen Amidon, David Lawrenson, Jacqueline Brassey, Dave Thomas, Andy Goldberg, Theo Richamond, Phil Baker, John Harlow Arts Correspondent, Victoria O'Brien, Anna Pasternak, Peter Byk, Jennifer Chorley, Raymond Keene, Jonathan Leake Environment Correspondent, John Karter, Gareth Huw Davies, Judith O'Reily Education Correspondent, Gordon Taylor, Andrew Roberts, Marie Colvin, Diana Wright, Debbie Hill, Kipper Williams, Peter Bryan, Frank Kane, Stephen Jones, Lord Walsingham, Joan Goodman, Richard Evans, Nick Cain, Andrew Smith, Michael Wood, Andrew Grice, Fred Couples, Steve Connor Science Correspondent, Martin Searby, Keith Wheatley, Claire Oldfield, Fraser Harrison, Rob Ryan, Ian Critchley, Rasselas, Mel Greaves Professor, Trevor Lewis, Colin McDowell, Bryan Appleyard, Lois Rogers Medical Correspondent, Stephen McGinty, Cheryl Holmes Perfect, Christopher Goodwin, Josh Salzmann, Andrew Johnston, Richard Woods, David Windle, Garth Alexander, Ken Bates, Marcello Mega, Janet Street-Porter, Alex Fortune, Maurice Chittenden, Kevin Pratt, David Rudnick, Andrew Lorenz Business Editor, Judith O'Reilly, Mark Franchetti, Ray Hutton, Martin Ivens, Peter Watts, Kevin McCarra, Tara Palmer-Tomkinson, Sean Hargrave, Sharon Davey, John Harlow, Matthew Lynn, Godfrey Smith, Michael Austin, Alber To Manguel, Nia Williams, Ed Barrett, Peter Morris, Andrew Alderson, John Waples, Peter Willson, A A Gill, Andrew Malone, Kavanagh's, Jeremy Wayne, John Carey, Noel Pascoe, Rajeev Syal, David Hutcheon, Kirsty Lang, Nadine Meisner, Nigel Ryan, Chrissy Iley, Lauren St John, Paul Wettstein, Robert Johnston, Howard Jacobson, Cherry Norton, John Spurling, Stephen Pettitt, Andrew License, Andrew Lorenz, Naomi Caine, Roz Denny, David Wickers, Jane Hardy, Misha Glenny, Roger Dobson, Valerie Brooke, Hazel Courteney, Mark Hodson, Andrew Frankel, Nicholas Hellen Media Correspondent, Steve Connor, Joe Lovejoy, Lara Hancock, Colin Rallings, Rupert Steiner, Chris Lightbown, Aryeh Nusbacher, Patrice Mkubwa, Simon Sebag Montefiore, Andy McNab, Sarah Baxter, Carey Scott, Joanna Simon, Stephen Boyd, Mandy Piggot, Tom Bower, Robert Corbldge, K Darlington, Boris Schapiro, Adam Parsons, Peter Stanford,
... Travel Outlook Forecast General Situation Atlantic Light fantastic: Hale. Bopp, the brightest come to… Rider's mother in ...
1997 - Gale Group | Sunday Times HA GDA
D. H. Wooden, H. M. Butner, D. E. Harker, C. E. Woodward,
... 10-μm spectra of Comet C/1995 (O1) (Hale–Bopp) to the mid-IR spectra of interplanetary dust particles (IDPs). The four epochs of Hale–Bopp silicate features, at 2.8 AU (pre-perihelion), ... as cometary dust particle analogs also fits Comet Hale–Bopp's silicate features, with the pyroxene IDP ∼50 ... Observatory Short Wavelength Spectrometer (ISO SWS) spectrum of Hale–Bopp at 2.8 AU, making it a questionable ... the ``cluster IDP" subclass of pyroxene IDPs fit Hale–Bopp's 10-μm spectra better than other pyroxene ... indicating their presolar origin. By spectroscopic analogy, Comet Hale–Bopp's Mg-rich pyroxene crystals may also be ...
Tópico(s): Stellar, planetary, and galactic studies
2000 - Elsevier BV | Icarus
Taki, Waldemar Januszczak, John Dugdale, Michael Prescott, Colin Firth, Barbara Hall, Nigel Botherway, Tony Barrell, Jon Swain, Nicholas Rufford, John Peter, Alan Hunt, Walter F Stowy, Emma Moore, Amanda Ursell, Jonathan Miller, Andrew Brownsword, Gilbert Doctorow, Sir Michael Bishop, Lesley White, Margaret Horsfield, John Jay, Dr Marcus Smith, Susan d'Arcy, Emine Saner, Frank Whitford, Ferdinand Mount, Addison de Witt, Sally Payne, Allan Lamb, David Smith, Humphrey Carpenter, Nick Pitt, Sarler Flynn, Nicki Pope, Neil Wormald, Andrew Sullivan, Michael Thrasher, Clive Davis, Mohamed al-FAYED, Edward Welsh, Mary Wilson, Lynne Truss, Stephen Grey Home Affairs Correspondent, Edward Platt, Tony Allen-Mills, Martin James, Jayne Gregory, Robert Winnett, Fran Cotton, Peter Wilson, David Moorcroft, Deryk Brown, Roger Anderson, Julian Barnes, David Dougill, Allan Massie, John Gribbin, Alan Pickstock, Lord Harris, Lord, Jad Adams, David Goldberg, David Hewson, Chris Hastings, Davis, Yvonne Ridley, Margaret Coles, Margarette Driscoll, Alasdair Reid, Harvey Porlock, Hugh Canning, Jeremy Clarkson, Stewart Lee, David Caims, Peter Conradi, Edward Porter, Louise Taylor, Chris Dodd, John Smart, Peter Durisch, Peter Bills, Michael Jones, Robert Harris, Lord Howick, Peter Millar, Tamsin Shaw, Kavanagh, George Perry, Kevin Connolly, Graham Otway, Nick Gardner, Shelley von Strunckel, Peter Warren, Rob Steen, Hugh John, John Dorrace, Ian Wright, Jon Freeman, Paul Ham, Stuart Wavell, Oleg Andrew, Roy Strong, Paul Donovan, Deborah Collcutt, J Webb, Veronica Masters, Sue Lawrence, Philip Craigie, Jeff Randall, Simon Mills, Wafic Said, Mark Dixon, Smita Talati, Peter Goss, Paul Bray, Olga Craig, Lady MacLean, Simon Fanshawe, Paul Driver, Anthony Philips, R Walters, Richard Price, Ann McFerran, Ian Hawkey, Caroline Scott, Christopher Morgan, Tim Kelsey, Richard Girling, Enya, Mark Edwards, Tom Shone, Dorren Lofthouse, Lucy Atkinson, Mohamed Al Fayed, Susan Clark, Hugh McLlvanney, David Lawrenson, Dave Thomas, Kuren Robinson, Phil Baker, John Harlow Arts Correspondent, Hugo Barnacle, James Brown, Victoria O'Brien, Usha Mittal, Edward, Raymond Keene, Jonathan Leake Environment Correspondent, John Karter, Ed Porter, Mike Gooley, Cosmo Landesman, Marie Colvin, Simon Willis, Debbie Hill, Diana Wright, Kipper Williams, Mimi Chakraborty, Ken Symon, Stephen Jones, Errol Nott, Uzi Mahnaimi, Michael Wright, Andrew Smith, Paul Nuki, Andrew Grice, Irwin Steizer, Joseph Lewis, Jeremy Lewis, James Dyson, Martin Searby, Rob Ryan, Claire Oldfield, Robyn Lewis, David Walsh, Mary Archer, Jeremy Paxman, Gordon Webb, Ian Critchley, Rasselas, Trevor Lewis, Bryan Appleyard, Lois Rogers Medical Correspondent, Stephen McGinty, Lakshmi, Christopher Goodwin, Josh Salzmann, Richard Branson, Mark Prigg, Sheryl Garratt, Diana, Richard Woods, Norman Stone, Garth Alexander, Archie Norman, Harvey Thomas, Peter Johnson, Andrienne Connors, Maurice Chittenden, David Rudnick, F Smith, Collin Rallings, Andrew Lorenz Business Editor, Ray Hutton, Lord Irvine, Peter Watts, Jonathan Leake, Susan Elkin, Tara Palmer-Tomkinson, Frank McLynn, Michael Sheridan, Paul Coco, Sean Hargrave, Niall Ferguson, Simon Callow, John Harlow, Philip Beresford, Matthew Lynn, Philip Norton, Michael Austin, Godfrey Smith, Tim Martin, Andrew Alderson, John Waples, A A Gill, Anthony Nixon, Charles Saatchi, John Carey, David Hutcheon, Sir Paul McCarthney, Kirsty Lang, Chrissy Iley, Lauren St John, Yergal Monahan, Frank Longford, Kevin Goldstein-Jackson, Cherry Norton, John Spurling, Stephen Pettitt, Andrew Lorenz, Stephen Boler, Naomi Caine, Roz Denny, David Wickers, Jane Hardy, Hazel Courteney, William Stobart, David Cook, Mark Hodson, Dominic Midgley, Joanne Robertson, Nicholas Hellen Media Correspondent, Joe Lovejoy, Jonathan Futrell, Steve Connor, Rupert Steiner, Chris Lightbown, Viola von Harrach, Alberto Manguel, Bob Murray, Simon Sebag Montefiore, Mike Hammond, David Smith Economics Editor, Pam Barett, Jackie Stewart, Joanna Simon, McLlvanney, Andrew Robert, Sir Reginald Hibbert, Tony Northrop, Stephen Boyd, India Knight, Clive Lucas, Mandy Piggot, Dan Pearson, Nick Faldo, Stephen Hayward, Boris Schapiro, Adam Parsons,
... Game Comet may hold secret of creation Space Hale-Bopp's icy core may show that the solar ...
1997 - Gale Group | Sunday Times HA GDA
D. H. Wooden, D. E. Harker, C. E. Woodward, H. M. Butner, C. Koike, F. C. Witteborn, Craig W. McMurtry,
... diameter of 3'') of comet C/1995 O1 (Hale-Bopp) at four temporal epochs from 1996 October through 1997 June during Hale-Bopp's approach to, arrival at, and recession from perihelion. Hale-Bopp's silicate feature is the strongest observed from ... fit empirical model for the temporal evolution of Hale-Bopp's silicate feature constrains the Mg-rich crystalline ... temperature. The dominance of Mg-rich pyroxenes among Hale-Bopp's cometary silicates is consistent with PUMA-1 ... high Mg content of the pyroxenes in comet Hale-Bopp implies that they are either pristine solar nebula ...
Tópico(s): Stellar, planetary, and galactic studies
1999 - IOP Publishing | The Astrophysical Journal
M. Womack, Gal Sarid, Kacper Wierzchoś,
... comets: the long-period comet C/1995 O1 (Hale-Bopp), and the short-period comets (with Centaur orbits) ... histories and/or size. The CO measurements of Hale-Bopp (4–11 AU) and 29P are consistent with ... 2 superimposed with sporadic outbursts. The similarity of Hale-Bopp CO production rates for pre- and post-perihelion ... explaining 29P's CO production rates. 29P outproduces Hale-Bopp at the same heliocentric distance, even though it ... have been devolatilized over a fresher comet like Hale-Bopp. This may point to 29P having a different ...
Tópico(s): Atmospheric Ozone and Climate
2017 - Institute of Physics | Publications of the Astronomical Society of the Pacific
Walter M. Harris, F. Scherb, E. J. Mierkiewicz, Ronald J. Oliversen, J. P. Morgenthaler,
... the OH coma of comet C/1995 O1 (Hale-Bopp), we obtain QOH from the model-independent method ... distance from the nucleus. The OH coma of Hale-Bopp was more spatially extended than those of previous ... 106 km) was ~2-3 times greater in Hale-Bopp than for a 1P/Halley class comet at ... and direct radio measurements of the outer coma Hale-Bopp OH velocity. The likely source of this acceleration ...
Tópico(s): Astrophysics and Star Formation Studies
2002 - IOP Publishing | The Astrophysical Journal
D. Bockelée‐Morvan, J. Boissier, N. Biver, J. Crovisier,
... in the atmosphere of Comet C/1995 O1 (Hale-Bopp) close to perihelion was released by a distributed ... We re-assess the origin of CO in Hale-Bopp’s coma from millimeter interferometric data and a ... 1–0 ro-vibrational lines observed in Comet Hale-Bopp at heliocentric distances less than 1.5 AU ... evidence for a distributed source of CO in Hale-Bopp’s atmosphere.
Tópico(s): Stellar, planetary, and galactic studies
2010 - Elsevier BV | Icarus
C. M. Lisse, K. E. Kraemer, Joseph A. Nuth, Aigen Li, D. J. Joswiak,
... of material emitted from Comet C/1995 O1 (Hale–Bopp) and the circumstellar material found around the young ... olivines and few crystalline pyroxenes are found in Hale–Bopp and HD 100546. The YSO also lacks amorphous ... aromatic hydrocarbons. The silicate and PAH material in Hale–Bopp is clearly less processed than in Tempel 1, indicating an earlier age of formation for Hale–Bopp. The observed material around HD 100546 is located ∼ ...
Tópico(s): Astrophysics and Star Formation Studies
2007 - Elsevier BV | Icarus
Stefanie N. Milam, Anthony J. Remijan, M. Womack, Leif Abrell, L. M. Ziurys, S. Wyckoff, A. J. Apponi, D. N. Friedel, L. E. Snyder, J. M. Veal, Patrick Palmer, L. M. Woodney, Michael F. A’Hearn, J. R. Forster, M. C. H. Wright, Imke de Pater, Steve K. Choi, M. Gesmundo,
... have been conducted toward comets C/1995 O1 (Hale-Bopp), C/2001 Q4 (NEAT), and C/2002 T7 ( ... Berkeley-Illinois-Maryland Association (BIMA) interferometer toward comet Hale-Bopp. These data indicate that the production rate of ... 1028 s-1 at ~1 AU in comet Hale-Bopp, using a simple Monte Carlo model, if a ... molecule is assumed. However, maps of H2CO in Hale-Bopp, in comparison with CO, show an extended distribution ( ...
Tópico(s): Astrophysics and Star Formation Studies
2006 - IOP Publishing | The Astrophysical Journal
C. M. Lisse, K. E. Kraemer, Joseph A. Nuth, A. Li, D. J. Joswiak,
... of material emitted from Comet C/1995 O1 (Hale–Bopp) and the circumstellar material found around the young ... olivines and few crystalline pyroxenes are found in Hale–Bopp and HD 100546. The YSO also lacks amorphous ... aromatic hydrocarbons. The silicate and PAH material in Hale–Bopp is clearly less processed than in Tempel 1, indicating an earlier age of formation for Hale–Bopp. The observed material around HD 100546 is located ∼ ...
Tópico(s): Astrophysics and Star Formation Studies
2006 - Elsevier BV | Icarus
J. Helbert, H. Rauer, D. C. Boice, W. F. Huebner,
The extraordinary activity of comet C/1995 O1 (Hale-Bopp) made it possible to observe the emission bands ... are obtained for heliocentric distances AU. In comet Hale-Bopp, C2H2 and C2H6 were measured directly by infrared ... can be studied in the coma of comet Hale-Bopp. We discuss possible indications of these abundance ratios for the formation region of comet Hale-Bopp.
Tópico(s): Stellar, planetary, and galactic studies
2005 - EDP Sciences | Astronomy and Astrophysics
D. Bockelée‐Morvan, D. C. Lis, J. E. Wink, D. Despois, J. Crovisier, R. Bachiller, Dominic J. Benford, N. Biver, P. Colom, J. K. Davies, E. Gérard, Brad St. Germain, Martin Houde, David M. Mehringer, R. Moreno, G. Paubert, T. G. Phillips, H. Rauer,
... and submillimetre observations of comet C/1995 O1 (Hale-Bopp) undertaken near perihelion with the Caltech Submillimeter Observatory ... OCS and HNCO relative to water in comet Hale-Bopp are 0.4% and 0.1%, respectively. During ... the volatile composition of the coma of comet Hale-Bopp is obtained. A quantitative comparison shows that chemical abundances in comet Hale-Bopp parallel those inferred in interstellar ices, hot molecular ...
Tópico(s): Atmospheric Ozone and Climate
2000 - EDP Sciences | Astronomy and Astrophysics
E. Kramer, Y. R. Fernández, C. M. Lisse, Michael S. P. Kelley, L. M. Woodney,
Comet C/1995 O1 (Hale–Bopp) has provided an unprecedented opportunity to observe a bright comet over a wide range of heliocentric distances. We present here Spitzer Space Telescope observations of Hale–Bopp from 2005 to 2008 that show a distinct ... comet. Our analysis shows that the shape of Hale–Bopp’s dust tail in these images cannot be ... cometary dust tail. The analysis also suggests that Hale–Bopp was actively emitting particles when these images were ...
Tópico(s): Stellar, planetary, and galactic studies
2014 - Elsevier BV | Icarus
C. G. Mason, R. D. Gehrz, T. J. Jones, C. E. Woodward, M. S. Hanner, D. M. Williams,
... 18.3 μm photometry of comet 1995 01 (Hale-Bopp). Our observations spanned nearly 4 months pre- and ... albedo are used to make determinations about the Hale-Bopp coma grain population. The evolution of the coma ... distances. We also observed several regions in the Hale-Bopp coma revealing significant gradients in the measured color ... The extreme values of these parameters displayed by Hale-Bopp suggest it had a smaller mean dust grain ...
Tópico(s): Stellar, planetary, and galactic studies
2001 - IOP Publishing | The Astrophysical Journal
D. G. Schleicher, Susan M. Lederer, R. L. Millis, T. L. Farnham,
Narrowband photometric observations of comet Hale-Bopp (C/1995 O1) between 25 July 1995 and 15 February 1997 indicated gas and dust production rates of 20 and 100 ... heliocentric distances for comet P/Halley in 1985. Hale-Bopp produced dust at a rate greater than has ... hydroxyl molecule, the calculated minimum effective diameter of Hale-Bopp's nucleus is 17 kilometers, but the actual ... to three times larger. The chemical composition of Hale-Bopp is consistent with that of other long-period ...
Tópico(s): Planetary Science and Exploration
1997 - American Association for the Advancement of Science | Science
Michael E. Brown, Antonin H. Bouchez, Hyron Spinrad, A. Misch,
... D lines in the nuclear regions of Comet Hale–Bopp to determine the sources of cometary sodium. Comparison ... that the intensities and velocities of sodium in Hale–Bopp can be explained if 55% of the observed ... by solar radiation pressure. Observations of H2O+in Hale–Bopp and subsequent modeling of a plasma-derived sodium ... in morphology and velocity to that observed in Hale–Bopp.
Tópico(s): Astrophysics and Star Formation Studies
1998 - Elsevier BV | Icarus
W. J. Altenhoff, John H. Bieging, Bryan Butler, H. M. Butner, R. Chini, C. G. T. Haslam, E. Kreysa, Robert N. Martin, R. Mauersberger, J. P. McMullin, D. Muders, W. L. Peters, J. Schmidt, J. Schraml, A. J. Sievers, P. Stumpff, C. Thum, A. von Kap-Herr, H. Wiesemeyer, J. E. Wink, R. Zylka,
We have observed both Comets Hyakutake and Hale-Bopp close to perigee with several telescopes at frequen- cies between 30 and 860 GHz for an extended period of time. The observed light ... 2.1 km. The nuclear diameter of C/Hale-Bopp was determined to 44.2 km after separation ... of 1870 and 11080 km for Hyakutake and Hale-Bopp, respectively. The spectral index for both comets is = ... distributions in the halo of these comets. For Hale-Bopp the extended emission could be traced to more ...
Tópico(s): Astrophysics and Cosmic Phenomena
1999 - EDP Sciences | Astronomy and Astrophysics
... of carbon monoxide in the coma of comet Hale‐Bopp have been assumed to be due mainly to ... of CO in the outer coma of comet Hale‐Bopp was only 60% of that previously deduced. However, as the high proportion of CO in comet Hale‐Bopp was also seen in some other measurements, alternative ...
Tópico(s): Laser-induced spectroscopy and plasma
2009 - American Geophysical Union | Geophysical Research Letters
R. J. Oliversen, N. E. Doane, F. Scherb, Walter M. Harris, J. P. Morgenthaler,
... 9850 Å emission obtained during observations of comet Hale-Bopp (C/1995 O1) in 1997 March and April. ... tracer of CO photodissociation in comets. However, in Hale-Bopp's large, dense coma, other processes, such as ... for [C I] 9850 Å emission in comet Hale-Bopp.
Tópico(s): Stellar, planetary, and galactic studies
2002 - IOP Publishing | The Astrophysical Journal
D. E. Harker, D. H. Wooden, C. E. Woodward, C. M. Lisse,
... spectrophotometry (R ≃ 250) of comet C/1995 O1 (Hale-Bopp), in conjunction with concurrent observations that extend the ... grains and crystalline and amorphous silicate grains in Hale-Bopp's coma, we find that as the comet ... the submicron-sized (≤1 μm) dust grains in Hale-Bopp's coma during each epoch.
Tópico(s): Stellar, planetary, and galactic studies
2002 - IOP Publishing | The Astrophysical Journal
J. Bouwman, A. de Koter, C. Dominik, L. B. F. M. Waters,
... very similar to that of C/1995 O1 Hale-Bopp (Crovisier et al. 1997). Using an identical methodology, ... important difference that the individual dust species in Hale-Bopp are in thermal contact with each other, while ... also occurred in our own solar system, that Hale-Bopp formed after the formation of one or more ...
Tópico(s): Stellar, planetary, and galactic studies
2003 - EDP Sciences | Astronomy and Astrophysics
Himadri Sekhar Das, S. Das, A. K. Sen,
... work, the observed linear-polarization data of Comet Hale–Bopp are studied at wavelengths λ= 0.485 and ... best match the observed polarization data of Comet Hale–Bopp at λ= 0.485 and 0.684 μm. Finally, the polarization properties of Comet Hale–Bopp are compared with Comet Levy 1990XX.
Tópico(s): Stellar, planetary, and galactic studies
2008 - Oxford University Press | Monthly Notices of the Royal Astronomical Society
J. Lasue, Anny Chantal Levasseur-Regourd, Edith Hadamcik, G. Alcouffe,
... component of cometary comae for C/1995 O1 Hale–Bopp and 1P/Halley. A model of light scattering ... in the coma of Comet C/1995 O1 Hale–Bopp, well fitted by a distribution of the volume- ... both comets, is larger for C/1995 O1 Hale–Bopp.
Tópico(s): Atmospheric Ozone and Climate
2008 - Elsevier BV | Icarus
Anthony J. Remijan, Stefanie N. Milam, M. Womack, A. J. Apponi, L. M. Ziurys, S. Wyckoff, Michael F. A’Hearn, Imke de Pater, J. R. Forster, D. N. Friedel, Patrick Palmer, L. E. Snyder, J. M. Veal, L. M. Woodney, M. C. H. Wright,
... small organic species toward Comets C/1995 O1 (Hale-Bopp) and C/2002 T7 (LINEAR) using the BIMA ... ARO 12m telescope at 2 mm. For Comet Hale-Bopp, both the single-dish and interferometer observations of ... emission. Single-dish observations of CH3CN in Comet Hale-Bopp indicate an excitation temperature of 200+/-10 K ... claimed transition of cometary (CH2OH)2 toward Comet Hale-Bopp with the 12m telescope indicates a compact distribution ...
Tópico(s): Molecular Spectroscopy and Structure
2008 - IOP Publishing | The Astrophysical Journal
Produção Nacional
Revisado por pares
Marcus V. Canaves, A. A. de Almeida, D. C. Boice, G. C. Sanzovo,
... sulfide in comets Hyakutake (C/1996 B2) and Hale-Bopp (C/1995 O1), Earth Moon Planets, 90, 1– ... applied to the recent bright comets Hyakutake and Hale-Bopp at a heliocentric distance of 1 AU using ... comparison of results for NS molecule in comet Hale-Bopp is in good agreement with Irvine et al. [ ... R., Note: detection of nitrogen sulfide in comet Hale-Bopp, Icarus, 143, 412–414, 2000.], while for CS ...
Tópico(s): Advanced Chemical Physics Studies
2007 - Elsevier BV | Advances in Space Research
N. Gortsas, E. Kührt, U. Motschmann, H. U. Keller,
... of the activity of Comet C/1995 O1 (Hale-Bopp) with a thermophysical nucleus model that does not ... seasonal effects due to the strong obliquity of Hale-Bopp as reported by Jorda et al. (Jorda, L., ... 90, 381–389) about the chemical heterogeneity of Hale-Bopp and of Bockelée-Morvan et al. (Bockelée-Morvan, ...
Tópico(s): Stellar, planetary, and galactic studies
2011 - Elsevier BV | Icarus
Gy. M. Szabó, K. Sárneczky, L. L. Kiss,
Comet Hale--Bopp (C/1995 O1) has been the single most significant comet encountered by modern astronomy, still having displayed ... at La Silla to check the activity of Hale--Bopp at 30.7 AU solar distance. On 2010- ... a radius of 35 km. With this observation, Hale--Bopp has been the most distant comet ever observed, ...
Tópico(s): Stellar, planetary, and galactic studies
2011 - EDP Sciences | Astronomy and Astrophysics
Susarla Raghuram, Anil Bhardwaj,
... present work we applied our model to comet Hale-Bopp, which had an order of magnitude higher H2O ... and O(1D) atoms show that in comet Hale-Bopp the green and red-doublet emissions are emitted ... observation of Zhang et al. (2001). In comet Hale-Bopp, for cometocentric distances less than 10^5 km, ...
Tópico(s): Atmospheric Ozone and Climate
2012 - Elsevier BV | Icarus