Subarcsecond resolution observations of the central parsec of the Galaxy at 2.2 microns
1990; IOP Publishing; Volume: 360; Linguagem: Inglês
10.1086/169099
ISSN1538-4357
AutoresM. Simon, W. P. Chen, W. J. Forrest, James D. Garnett, A. J. Longmore, T. Gauer, R. I. Dixon,
Tópico(s)Astrophysics and Star Formation Studies
Resumoview Abstract Citations (38) References (23) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Subarcsecond Resolution Observations of the Central Parsec of the Galaxy at 2.2 Microns Simon, M. ; Chen, W. -P. ; Forrest, W. J. ; Garnett, J. D. ; Longmore, A. J. ; Gauer, T. ; Dixon, R. I. Abstract Four separate lunar occultations of the Galactic center in the infrared K-band have been observed, and the results are used to estimate the size of the sources and to derive photometry. It is found that IRS 16NE, 16NW, and IRS 29 are smaller than about 510 AU and IRS 16SW-W and C are smaller than 85 AU. All sources brighter than K = 10 mag in the central pc are smaller than 510 AU and therefore seem to be stars. IRS 7 is smaller than about 100 AU. IRS 1W and 13, resolved into pairs of stars, are probably the exciting stars for these H II regions. The shape of the differential luminosity function of the stars in the central sq pc is similar to that of stars in the central 150 sq pc. There is a steady increase in star density toward the central few arcsec of the Galaxy. Publication: The Astrophysical Journal Pub Date: September 1990 DOI: 10.1086/169099 Bibcode: 1990ApJ...360...95S Keywords: Galactic Nuclei; Infrared Sources (Astronomy); Milky Way Galaxy; Spatial Resolution; Astronomical Photography; Infrared Photometry; Lunar Occultation; Astrophysics; GALAXIES: NUCLEI; GALAXIES: THE GALAXY; INFRARED: SOURCES; OCCULTATIONS full text sources ADS | data products SIMBAD (41)
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