F. Koliopanos, Bogdan C. Ciambur, Alister W. Graham, N. A. Webb, M. Coriat, Burçı̇n Mutlu-Pakdı̇l, Benjamin L. Davis, O. Godet, D. Barret, Marc S. Seigar,
... report that, in contrast to previous classification, galaxy NGC 4470 is bulge-less, and we also cast doubts on the AGN classification of NGC 3507. Conclusions. We find that our latest, state- ...
Tópico(s): Astrophysics and Cosmic Phenomena
2017 - EDP Sciences | Astronomy and Astrophysics
A. Pastorello, T. W. Chen, Yongzhi Cai, A. Morales-Garoffolo, Z. Cano, E. Mason, E. A. Barsukova, S. Benetti, M. Berton, S. Bose, F. Bufano, E. Callis, G. Cannizzaro, R. Cartier, Ping Chen, Subo Dong, S. Dyrbye, N. Elias‐Rosa, Andreas Flörs, M. Fraser, S. Geier, V. P. Goranskij, Д. А. Канн, H. Kuncarayakti, F. Onori, A. Reguitti, T. Reynolds, I. R. Losada, Ana Sagués Carracedo, T. Schweyer, S. J. Smartt, А. М. Татарников, A. F. Valeev, C. Vogl, T. Wevers, A. de Ugarte Postigo, L. Izzo, C. Inserra, E. Kankare, K. Maguire, K. Smith, B. Stalder, L. Tartaglia, C. C. Thöne, G. Valerin, D. R. Young,
We present the results of our photometric and spectroscopic follow-up of the intermediate-luminosity optical transient AT 2017jfs. At peak, the object reaches an absolute magnitude of Mg=-15.46+-0.15 mag and a bolometric luminosity of 5.5x10^41 erg/s. Its light curve has the double-peak shape typical of Luminous Red Novae (LRNe), with a narrow first peak bright in the blue bands, while the second peak is longer lasting and more luminous in the red and near-infrared (NIR) bands. During the first peak, ...
Tópico(s): Pulsars and Gravitational Waves Research
2019 - EDP Sciences | Astronomy and Astrophysics
Sarah L. Martell, Graeme H. Smith, Michael M. Briley,
... metallicity from M92 ([Fe/H]=-2.29) to NGC 6712 ([Fe/H]=-1.01). Carbon abundances were ...
Tópico(s): Astronomy and Astrophysical Research
2008 - Institute of Physics | The Astronomical Journal