X-ray emission from clusters of galaxies and cosmological parameters
Abstract Clusters of galaxies are excellent probes of cosmic structure and evolution. X-ray studies of clusters provide some of their key parameters, viz., temperature of the hot intra-cluster gas, its metallicity, X-ray luminosity and surface brightness giving mass distribution and mass-flow rate i...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Singh, KP [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
1999 |
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| Schlagwörter: |
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| Anmerkung: |
© Indian Academy of Sciences 1999 |
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| Übergeordnetes Werk: |
Enthalten in: Pramāna - Springer India, 1973, 53(1999), 6 vom: Dez., Seite 1043-1051 |
|---|---|
| Übergeordnetes Werk: |
volume:53 ; year:1999 ; number:6 ; month:12 ; pages:1043-1051 |
| Links: |
|---|
| DOI / URN: |
10.1007/s12043-999-0061-4 |
|---|
| Katalog-ID: |
OLC2076032207 |
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| 520 | |a Abstract Clusters of galaxies are excellent probes of cosmic structure and evolution. X-ray studies of clusters provide some of their key parameters, viz., temperature of the hot intra-cluster gas, its metallicity, X-ray luminosity and surface brightness giving mass distribution and mass-flow rate in the case of cooling flows. X-ray measurements for a large sample of clusters have lead to estimates of the total gravitating mass in them, which can be compared to the virial masses derived from dynamical considerations and gravitational lensing in some of them. X-ray derived total masses are consistent with masses obtained from the other methods after the effects due to the presence of cooling flows are taken into account in the analyses. Estimated virial masses, lack of evolution in X-ray properties, and detection of several very hot clusters at high redshifts indicate a Universe with a low value (≤ 0.3) for the Ω parameter. | ||
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| 650 | 4 | |a X-rays | |
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10.1007/s12043-999-0061-4 doi (DE-627)OLC2076032207 (DE-He213)s12043-999-0061-4-p DE-627 ger DE-627 rakwb eng 530 VZ Singh, KP verfasserin aut X-ray emission from clusters of galaxies and cosmological parameters 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Indian Academy of Sciences 1999 Abstract Clusters of galaxies are excellent probes of cosmic structure and evolution. X-ray studies of clusters provide some of their key parameters, viz., temperature of the hot intra-cluster gas, its metallicity, X-ray luminosity and surface brightness giving mass distribution and mass-flow rate in the case of cooling flows. X-ray measurements for a large sample of clusters have lead to estimates of the total gravitating mass in them, which can be compared to the virial masses derived from dynamical considerations and gravitational lensing in some of them. X-ray derived total masses are consistent with masses obtained from the other methods after the effects due to the presence of cooling flows are taken into account in the analyses. Estimated virial masses, lack of evolution in X-ray properties, and detection of several very hot clusters at high redshifts indicate a Universe with a low value (≤ 0.3) for the Ω parameter. Clusters of galaxies X-rays Enthalten in Pramāna Springer India, 1973 53(1999), 6 vom: Dez., Seite 1043-1051 (DE-627)129403342 (DE-600)186949-8 (DE-576)014785102 0304-4289 nnns volume:53 year:1999 number:6 month:12 pages:1043-1051 https://doi.org/10.1007/s12043-999-0061-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_70 GBV_ILN_4012 AR 53 1999 6 12 1043-1051 |
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10.1007/s12043-999-0061-4 doi (DE-627)OLC2076032207 (DE-He213)s12043-999-0061-4-p DE-627 ger DE-627 rakwb eng 530 VZ Singh, KP verfasserin aut X-ray emission from clusters of galaxies and cosmological parameters 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Indian Academy of Sciences 1999 Abstract Clusters of galaxies are excellent probes of cosmic structure and evolution. X-ray studies of clusters provide some of their key parameters, viz., temperature of the hot intra-cluster gas, its metallicity, X-ray luminosity and surface brightness giving mass distribution and mass-flow rate in the case of cooling flows. X-ray measurements for a large sample of clusters have lead to estimates of the total gravitating mass in them, which can be compared to the virial masses derived from dynamical considerations and gravitational lensing in some of them. X-ray derived total masses are consistent with masses obtained from the other methods after the effects due to the presence of cooling flows are taken into account in the analyses. Estimated virial masses, lack of evolution in X-ray properties, and detection of several very hot clusters at high redshifts indicate a Universe with a low value (≤ 0.3) for the Ω parameter. Clusters of galaxies X-rays Enthalten in Pramāna Springer India, 1973 53(1999), 6 vom: Dez., Seite 1043-1051 (DE-627)129403342 (DE-600)186949-8 (DE-576)014785102 0304-4289 nnns volume:53 year:1999 number:6 month:12 pages:1043-1051 https://doi.org/10.1007/s12043-999-0061-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_70 GBV_ILN_4012 AR 53 1999 6 12 1043-1051 |
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10.1007/s12043-999-0061-4 doi (DE-627)OLC2076032207 (DE-He213)s12043-999-0061-4-p DE-627 ger DE-627 rakwb eng 530 VZ Singh, KP verfasserin aut X-ray emission from clusters of galaxies and cosmological parameters 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Indian Academy of Sciences 1999 Abstract Clusters of galaxies are excellent probes of cosmic structure and evolution. X-ray studies of clusters provide some of their key parameters, viz., temperature of the hot intra-cluster gas, its metallicity, X-ray luminosity and surface brightness giving mass distribution and mass-flow rate in the case of cooling flows. X-ray measurements for a large sample of clusters have lead to estimates of the total gravitating mass in them, which can be compared to the virial masses derived from dynamical considerations and gravitational lensing in some of them. X-ray derived total masses are consistent with masses obtained from the other methods after the effects due to the presence of cooling flows are taken into account in the analyses. Estimated virial masses, lack of evolution in X-ray properties, and detection of several very hot clusters at high redshifts indicate a Universe with a low value (≤ 0.3) for the Ω parameter. Clusters of galaxies X-rays Enthalten in Pramāna Springer India, 1973 53(1999), 6 vom: Dez., Seite 1043-1051 (DE-627)129403342 (DE-600)186949-8 (DE-576)014785102 0304-4289 nnns volume:53 year:1999 number:6 month:12 pages:1043-1051 https://doi.org/10.1007/s12043-999-0061-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_70 GBV_ILN_4012 AR 53 1999 6 12 1043-1051 |
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10.1007/s12043-999-0061-4 doi (DE-627)OLC2076032207 (DE-He213)s12043-999-0061-4-p DE-627 ger DE-627 rakwb eng 530 VZ Singh, KP verfasserin aut X-ray emission from clusters of galaxies and cosmological parameters 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Indian Academy of Sciences 1999 Abstract Clusters of galaxies are excellent probes of cosmic structure and evolution. X-ray studies of clusters provide some of their key parameters, viz., temperature of the hot intra-cluster gas, its metallicity, X-ray luminosity and surface brightness giving mass distribution and mass-flow rate in the case of cooling flows. X-ray measurements for a large sample of clusters have lead to estimates of the total gravitating mass in them, which can be compared to the virial masses derived from dynamical considerations and gravitational lensing in some of them. X-ray derived total masses are consistent with masses obtained from the other methods after the effects due to the presence of cooling flows are taken into account in the analyses. Estimated virial masses, lack of evolution in X-ray properties, and detection of several very hot clusters at high redshifts indicate a Universe with a low value (≤ 0.3) for the Ω parameter. Clusters of galaxies X-rays Enthalten in Pramāna Springer India, 1973 53(1999), 6 vom: Dez., Seite 1043-1051 (DE-627)129403342 (DE-600)186949-8 (DE-576)014785102 0304-4289 nnns volume:53 year:1999 number:6 month:12 pages:1043-1051 https://doi.org/10.1007/s12043-999-0061-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_70 GBV_ILN_4012 AR 53 1999 6 12 1043-1051 |
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10.1007/s12043-999-0061-4 doi (DE-627)OLC2076032207 (DE-He213)s12043-999-0061-4-p DE-627 ger DE-627 rakwb eng 530 VZ Singh, KP verfasserin aut X-ray emission from clusters of galaxies and cosmological parameters 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Indian Academy of Sciences 1999 Abstract Clusters of galaxies are excellent probes of cosmic structure and evolution. X-ray studies of clusters provide some of their key parameters, viz., temperature of the hot intra-cluster gas, its metallicity, X-ray luminosity and surface brightness giving mass distribution and mass-flow rate in the case of cooling flows. X-ray measurements for a large sample of clusters have lead to estimates of the total gravitating mass in them, which can be compared to the virial masses derived from dynamical considerations and gravitational lensing in some of them. X-ray derived total masses are consistent with masses obtained from the other methods after the effects due to the presence of cooling flows are taken into account in the analyses. Estimated virial masses, lack of evolution in X-ray properties, and detection of several very hot clusters at high redshifts indicate a Universe with a low value (≤ 0.3) for the Ω parameter. Clusters of galaxies X-rays Enthalten in Pramāna Springer India, 1973 53(1999), 6 vom: Dez., Seite 1043-1051 (DE-627)129403342 (DE-600)186949-8 (DE-576)014785102 0304-4289 nnns volume:53 year:1999 number:6 month:12 pages:1043-1051 https://doi.org/10.1007/s12043-999-0061-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_70 GBV_ILN_4012 AR 53 1999 6 12 1043-1051 |
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Abstract Clusters of galaxies are excellent probes of cosmic structure and evolution. X-ray studies of clusters provide some of their key parameters, viz., temperature of the hot intra-cluster gas, its metallicity, X-ray luminosity and surface brightness giving mass distribution and mass-flow rate in the case of cooling flows. X-ray measurements for a large sample of clusters have lead to estimates of the total gravitating mass in them, which can be compared to the virial masses derived from dynamical considerations and gravitational lensing in some of them. X-ray derived total masses are consistent with masses obtained from the other methods after the effects due to the presence of cooling flows are taken into account in the analyses. Estimated virial masses, lack of evolution in X-ray properties, and detection of several very hot clusters at high redshifts indicate a Universe with a low value (≤ 0.3) for the Ω parameter. © Indian Academy of Sciences 1999 |
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Abstract Clusters of galaxies are excellent probes of cosmic structure and evolution. X-ray studies of clusters provide some of their key parameters, viz., temperature of the hot intra-cluster gas, its metallicity, X-ray luminosity and surface brightness giving mass distribution and mass-flow rate in the case of cooling flows. X-ray measurements for a large sample of clusters have lead to estimates of the total gravitating mass in them, which can be compared to the virial masses derived from dynamical considerations and gravitational lensing in some of them. X-ray derived total masses are consistent with masses obtained from the other methods after the effects due to the presence of cooling flows are taken into account in the analyses. Estimated virial masses, lack of evolution in X-ray properties, and detection of several very hot clusters at high redshifts indicate a Universe with a low value (≤ 0.3) for the Ω parameter. © Indian Academy of Sciences 1999 |
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Abstract Clusters of galaxies are excellent probes of cosmic structure and evolution. X-ray studies of clusters provide some of their key parameters, viz., temperature of the hot intra-cluster gas, its metallicity, X-ray luminosity and surface brightness giving mass distribution and mass-flow rate in the case of cooling flows. X-ray measurements for a large sample of clusters have lead to estimates of the total gravitating mass in them, which can be compared to the virial masses derived from dynamical considerations and gravitational lensing in some of them. X-ray derived total masses are consistent with masses obtained from the other methods after the effects due to the presence of cooling flows are taken into account in the analyses. Estimated virial masses, lack of evolution in X-ray properties, and detection of several very hot clusters at high redshifts indicate a Universe with a low value (≤ 0.3) for the Ω parameter. © Indian Academy of Sciences 1999 |
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