Academic Journal
� 2007. The American Astronomical Society. All rights reserved. Printed in U.S.A. LOW-MASS X-RAY BINARIES AND GLOBULAR CLUSTERS IN CENTAURUS A 1
| العنوان: | � 2007. The American Astronomical Society. All rights reserved. Printed in U.S.A. LOW-MASS X-RAY BINARIES AND GLOBULAR CLUSTERS IN CENTAURUS A 1 |
|---|---|
| المؤلفون: | Andrés Jordán, Gregory R. Sivakoff, Dean E. Mclaughlin, John P. Blakeslee, Daniel A. Evans, Ralph P. Kraft, Martin J. Hardcastle, Eric W. Peng, Patrick Côté, Judith H. Croston, Adrienne M. Juett, Nicola J. Brassington, William R. Forman, Christine Jones, Stephen S. Murray |
| المساهمون: | The Pennsylvania State University CiteSeerX Archives |
| المصدر: | http://www.astro.virginia.edu/~cls7i/papers/CenA_GC_LMXBs.pdf. |
| سنة النشر: | 2007 |
| المجموعة: | CiteSeerX |
| الوصف: | We present results of Hubble Space Telescope and Chandra X-Ray Observatory observations of globular clusters (GCs) and low-mass X-ray binaries (LMXBs) in the central regions of Centaurus A. Out of 440 GC candidates, we find 41 host X-ray point sources that are most likely LMXBs. We fit King models to our GC candidates in order to measure their structural parameters. We find that GCs that host LMXBs are denser and more compact and have higher encounter rates and concentrations than the GC population as a whole. We show that the higher concentrations and masses are a consequence of the dependence of LMXB incidence on central density and size plus the general trend for denser GCs to have higher masses and concentrations. We conclude that neither concentration nor mass is a fundamental variable in determining the presence of LMXBs in GCs and that the more fundamental parameters relate to central density and size. |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.79.8462; http://www.astro.virginia.edu/~cls7i/papers/CenA_GC_LMXBs.pdf |
| الاتاحة: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.79.8462 http://www.astro.virginia.edu/~cls7i/papers/CenA_GC_LMXBs.pdf |
| Rights: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| رقم الانضمام: | edsbas.B6CEFA2F |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |