A Chandra Virgo cluster survey of spiral galaxies-I. Introduction to the survey and a new ULX sample
We present an analysis of the ultraluminous X-ray source (ULX) population in 75 Virgo cluster late-Type galaxies, including all those with a star formation rate 1 M yr-1 and a representative sample of the less star forming ones. This study is based on 110 observations obtained over 20 yr with the Ch...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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OXFORD UNIV PRESS
2022
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| Online Access: | http://hdl.handle.net/20.500.11937/97228 |
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| author | Soria, Roberto Kolehmainen, M. Graham, A.W. Swartz, D.A. Yukita, M. Motch, C. Jarrett, T.H. Miller-Jones, James Plotkin, Richard MacCarone, T.J. Ferrarese, L. Guest, A. Lançon, A. |
| author_facet | Soria, Roberto Kolehmainen, M. Graham, A.W. Swartz, D.A. Yukita, M. Motch, C. Jarrett, T.H. Miller-Jones, James Plotkin, Richard MacCarone, T.J. Ferrarese, L. Guest, A. Lançon, A. |
| author_sort | Soria, Roberto |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We present an analysis of the ultraluminous X-ray source (ULX) population in 75 Virgo cluster late-Type galaxies, including all those with a star formation rate 1 M yr-1 and a representative sample of the less star forming ones. This study is based on 110 observations obtained over 20 yr with the Chandra X-ray Observatory Advanced Camera for Imaging Spectroscopy. As part of a Large Chandra Program, new observations were obtained for 52 of these 75 galaxies. The data are complete to a sensitivity of ≈1039 erg s-1, with a typical detection limit of ≈3 × 1038 erg s-1 for the majority of the sources. The catalogue contains about 80 ULXs (0.3-10 keV luminosity >1039 erg s-1), and provides their location, observed flux, de-Absorbed luminosity, and (for the 25 most luminous ones) simple X-ray spectral properties. We discuss the ULX luminosity function in relation to the mass and star formation rate of the sample galaxies. We show that recent models of low-mass plus high-mass X-ray binary populations (scaling with stellar mass and star formation rate, respectively) are mostly consistent with our observational results. We tentatively identify the most luminous X-ray source in the sample (a source in IC 3322A with LX ≈ 6 × 1040 erg s-1) as a recent supernova or its young remnant. The properties of the sample galaxies (morphologies, stellar masses, star formation rates, total X-ray luminosities from their point-source population) are also summarized. |
| first_indexed | 2025-11-14T11:48:02Z |
| format | Journal Article |
| id | curtin-20.500.11937-97228 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:48:02Z |
| publishDate | 2022 |
| publisher | OXFORD UNIV PRESS |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-972282025-04-30T01:22:50Z A Chandra Virgo cluster survey of spiral galaxies-I. Introduction to the survey and a new ULX sample Soria, Roberto Kolehmainen, M. Graham, A.W. Swartz, D.A. Yukita, M. Motch, C. Jarrett, T.H. Miller-Jones, James Plotkin, Richard MacCarone, T.J. Ferrarese, L. Guest, A. Lançon, A. Science & Technology Physical Sciences Astronomy & Astrophysics galaxies: clusters: individual: Virgo galaxies: spirals X-rays: binaries X-rays: galaxies X-RAY BINARIES STAR-FORMATION RATE LOW-MASS BLACK-HOLE LUMINOSITY FUNCTION STELLAR MASS FORMING GALAXIES FINAL DATA EVOLUTION EMISSION We present an analysis of the ultraluminous X-ray source (ULX) population in 75 Virgo cluster late-Type galaxies, including all those with a star formation rate 1 M yr-1 and a representative sample of the less star forming ones. This study is based on 110 observations obtained over 20 yr with the Chandra X-ray Observatory Advanced Camera for Imaging Spectroscopy. As part of a Large Chandra Program, new observations were obtained for 52 of these 75 galaxies. The data are complete to a sensitivity of ≈1039 erg s-1, with a typical detection limit of ≈3 × 1038 erg s-1 for the majority of the sources. The catalogue contains about 80 ULXs (0.3-10 keV luminosity >1039 erg s-1), and provides their location, observed flux, de-Absorbed luminosity, and (for the 25 most luminous ones) simple X-ray spectral properties. We discuss the ULX luminosity function in relation to the mass and star formation rate of the sample galaxies. We show that recent models of low-mass plus high-mass X-ray binary populations (scaling with stellar mass and star formation rate, respectively) are mostly consistent with our observational results. We tentatively identify the most luminous X-ray source in the sample (a source in IC 3322A with LX ≈ 6 × 1040 erg s-1) as a recent supernova or its young remnant. The properties of the sample galaxies (morphologies, stellar masses, star formation rates, total X-ray luminosities from their point-source population) are also summarized. 2022 Journal Article http://hdl.handle.net/20.500.11937/97228 10.1093/mnras/stac148 English OXFORD UNIV PRESS restricted |
| spellingShingle | Science & Technology Physical Sciences Astronomy & Astrophysics galaxies: clusters: individual: Virgo galaxies: spirals X-rays: binaries X-rays: galaxies X-RAY BINARIES STAR-FORMATION RATE LOW-MASS BLACK-HOLE LUMINOSITY FUNCTION STELLAR MASS FORMING GALAXIES FINAL DATA EVOLUTION EMISSION Soria, Roberto Kolehmainen, M. Graham, A.W. Swartz, D.A. Yukita, M. Motch, C. Jarrett, T.H. Miller-Jones, James Plotkin, Richard MacCarone, T.J. Ferrarese, L. Guest, A. Lançon, A. A Chandra Virgo cluster survey of spiral galaxies-I. Introduction to the survey and a new ULX sample |
| title | A Chandra Virgo cluster survey of spiral galaxies-I. Introduction to the survey and a new ULX sample |
| title_full | A Chandra Virgo cluster survey of spiral galaxies-I. Introduction to the survey and a new ULX sample |
| title_fullStr | A Chandra Virgo cluster survey of spiral galaxies-I. Introduction to the survey and a new ULX sample |
| title_full_unstemmed | A Chandra Virgo cluster survey of spiral galaxies-I. Introduction to the survey and a new ULX sample |
| title_short | A Chandra Virgo cluster survey of spiral galaxies-I. Introduction to the survey and a new ULX sample |
| title_sort | chandra virgo cluster survey of spiral galaxies-i. introduction to the survey and a new ulx sample |
| topic | Science & Technology Physical Sciences Astronomy & Astrophysics galaxies: clusters: individual: Virgo galaxies: spirals X-rays: binaries X-rays: galaxies X-RAY BINARIES STAR-FORMATION RATE LOW-MASS BLACK-HOLE LUMINOSITY FUNCTION STELLAR MASS FORMING GALAXIES FINAL DATA EVOLUTION EMISSION |
| url | http://hdl.handle.net/20.500.11937/97228 |