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The nova rate in the elliptical component of NGC 5128
The results are presented of a five year nova survey of NGC 5128 performed with an H-alpha filter at the prime focus of the CTIO 4 m telescope. In all, 16 novae were detected, of which 12 are members of a statistically complete and homogeneous sample unaffected by the absorption lane of the galaxy....
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| Published in: | The Astronomical journal 1990-04, Vol.99, p.1079 |
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| Main Authors: | , , , , |
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| Language: | English |
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| container_start_page | 1079 |
| container_title | The Astronomical journal |
| container_volume | 99 |
| creator | Ciardullo, Robin Tamblyn, Peter Jacoby, George H. Ford, Holland C. Williams, R. E. |
| description | The results are presented of a five year nova survey of NGC 5128 performed with an H-alpha filter at the prime focus of the CTIO 4 m telescope. In all, 16 novae were detected, of which 12 are members of a statistically complete and homogeneous sample unaffected by the absorption lane of the galaxy. When normalized to B luminosity, the nova rate in the elliptical component of NGC 5128 is 2.7 + or - 1.0 times less than that observed in the bulge of M31. However, when normalized in the infrared K bandpass, the two nova rates are identical, and comparable to that measured in the Large Magellanic Cloud. These data suggest that (1) the percentage of binary stars is approximately constant over a large range of star-forming environments, (2) the nova rate in our own galaxy is between 11 and 46/yr, and (3) nova rates are not strongly affected by tidal captures in bright globular clusters. |
| doi_str_mv | 10.1086/115397 |
| format | article |
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E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The nova rate in the elliptical component of NGC 5128</atitle><jtitle>The Astronomical journal</jtitle><date>1990-04-01</date><risdate>1990</risdate><volume>99</volume><spage>1079</spage><pages>1079-</pages><issn>0004-6256</issn><eissn>1538-3881</eissn><abstract>The results are presented of a five year nova survey of NGC 5128 performed with an H-alpha filter at the prime focus of the CTIO 4 m telescope. In all, 16 novae were detected, of which 12 are members of a statistically complete and homogeneous sample unaffected by the absorption lane of the galaxy. When normalized to B luminosity, the nova rate in the elliptical component of NGC 5128 is 2.7 + or - 1.0 times less than that observed in the bulge of M31. However, when normalized in the infrared K bandpass, the two nova rates are identical, and comparable to that measured in the Large Magellanic Cloud. These data suggest that (1) the percentage of binary stars is approximately constant over a large range of star-forming environments, (2) the nova rate in our own galaxy is between 11 and 46/yr, and (3) nova rates are not strongly affected by tidal captures in bright globular clusters.</abstract><cop>Legacy CDMS</cop><doi>10.1086/115397</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0004-6256 |
| ispartof | The Astronomical journal, 1990-04, Vol.99, p.1079 |
| issn | 0004-6256 1538-3881 |
| language | eng |
| recordid | cdi_osti_scitechconnect_6807002 |
| source | EZB Electronic Journals Library |
| subjects | ABSORPTION SPECTRA Astrophysics BALMER LINES BINARY STARS CHARGE-COUPLED DEVICES CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COMPARATIVE EVALUATIONS CONFIGURATION DETECTION DISTRIBUTION ELLIPTICAL CONFIGURATION ERUPTIVE VARIABLE STARS GALAXIES MAGELLANIC CLOUDS MILKY WAY NOVAE SEMICONDUCTOR DEVICES SPATIAL DISTRIBUTION SPECTRA STAR CLUSTERS STAR EVOLUTION STARS TELESCOPES VARIABLE STARS 640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar, Radio & X-Ray Sources |
| title | The nova rate in the elliptical component of NGC 5128 |
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