X-RAY EMISSION FROM TWO INFRARED-SELECTED GALAXY CLUSTERS AT z > 1.4 IN THE IRAC SHALLOW CLUSTER SURVEY
We report the X-ray detection of two z > 1.4 infrared-selected galaxy clusters from the IRAC Shallow Cluster Survey (ISCS). We present new data from the Hubble Space Telescope and the W. M. Keck Observatory that spectroscopically confirm cluster ISCS J1432.4+3250 at z = 1.49, the most distant of...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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Institute of Physics/American Astronomical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/95726 https://orcid.org/0000-0002-1379-4482 |
| _version_ | 1826216586214637568 |
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| author | Brodwin, M. Stern, D. Vikhlinin, A. Stanford, S. A. Gonzalez, Anthony H. Eisenhardt, P. R. Ashby, M. L. N. Bautz, Marshall W. Dey, A. Forman, W. R. Gettings, D. P. Hickox, R. C. Jannuzi, Buell T. Jones, C. Mancone, C. L. Moustakas, L. A. Ruel, J. Snyder, G. Zeimann, G. Miller, Eric D |
| author2 | MIT Kavli Institute for Astrophysics and Space Research |
| author_facet | MIT Kavli Institute for Astrophysics and Space Research Brodwin, M. Stern, D. Vikhlinin, A. Stanford, S. A. Gonzalez, Anthony H. Eisenhardt, P. R. Ashby, M. L. N. Bautz, Marshall W. Dey, A. Forman, W. R. Gettings, D. P. Hickox, R. C. Jannuzi, Buell T. Jones, C. Mancone, C. L. Moustakas, L. A. Ruel, J. Snyder, G. Zeimann, G. Miller, Eric D |
| author_sort | Brodwin, M. |
| collection | MIT |
| description | We report the X-ray detection of two z > 1.4 infrared-selected galaxy clusters from the IRAC Shallow Cluster Survey (ISCS). We present new data from the Hubble Space Telescope and the W. M. Keck Observatory that spectroscopically confirm cluster ISCS J1432.4+3250 at z = 1.49, the most distant of 18 confirmed z > 1 clusters in the ISCS to date. We also present new spectroscopy for ISCS J1438.1+3414, previously reported at z = 1.41, and measure its dynamical mass. Clusters ISCS J1432.4+3250 and ISCS J1438.1+3414 are detected in 36 ks and 143 ks Chandra exposures at significances of 5.2σ and 9.7σ, from which we measure total masses of log(M[subscript 200,Lx]/M ⊙) = 14.4 +/- 0.2 and 14.35 [superscript +0.14] – 0.11, respectively. The consistency of the X-ray and dynamical properties of these high-redshift clusters further demonstrates that the ISCS is robustly detecting massive clusters to at least z = 1.5. |
| first_indexed | 2024-09-23T16:49:57Z |
| format | Article |
| id | mit-1721.1/95726 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:49:57Z |
| publishDate | 2015 |
| publisher | Institute of Physics/American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/957262022-09-29T21:47:24Z X-RAY EMISSION FROM TWO INFRARED-SELECTED GALAXY CLUSTERS AT z > 1.4 IN THE IRAC SHALLOW CLUSTER SURVEY Brodwin, M. Stern, D. Vikhlinin, A. Stanford, S. A. Gonzalez, Anthony H. Eisenhardt, P. R. Ashby, M. L. N. Bautz, Marshall W. Dey, A. Forman, W. R. Gettings, D. P. Hickox, R. C. Jannuzi, Buell T. Jones, C. Mancone, C. L. Moustakas, L. A. Ruel, J. Snyder, G. Zeimann, G. Miller, Eric D MIT Kavli Institute for Astrophysics and Space Research Bautz, Marshall W. Miller, Eric D. We report the X-ray detection of two z > 1.4 infrared-selected galaxy clusters from the IRAC Shallow Cluster Survey (ISCS). We present new data from the Hubble Space Telescope and the W. M. Keck Observatory that spectroscopically confirm cluster ISCS J1432.4+3250 at z = 1.49, the most distant of 18 confirmed z > 1 clusters in the ISCS to date. We also present new spectroscopy for ISCS J1438.1+3414, previously reported at z = 1.41, and measure its dynamical mass. Clusters ISCS J1432.4+3250 and ISCS J1438.1+3414 are detected in 36 ks and 143 ks Chandra exposures at significances of 5.2σ and 9.7σ, from which we measure total masses of log(M[subscript 200,Lx]/M ⊙) = 14.4 +/- 0.2 and 14.35 [superscript +0.14] – 0.11, respectively. The consistency of the X-ray and dynamical properties of these high-redshift clusters further demonstrates that the ISCS is robustly detecting massive clusters to at least z = 1.5. United States. National Aeronautics and Space Administration (NASA grant G09-0150A) W. M. Keck Foundation United States. Dept. of Energy (contract No. W-7405-ENG-48) Chandra X-ray Center (U.S.) (contract SV4-74018) 2015-02-27T15:56:45Z 2015-02-27T15:56:45Z 2011-05 2010-11 Article http://purl.org/eprint/type/JournalArticle 0004-637X 1538-4357 http://hdl.handle.net/1721.1/95726 Brodwin, M., D. Stern, A. Vikhlinin, S. A. Stanford, A. H. Gonzalez, P. R. Eisenhardt, M. L. N. Ashby, et al. “ X-RAY EMISSION FROM TWO INFRARED-SELECTED GALAXY CLUSTERS AT z > 1.4 IN THE IRAC SHALLOW CLUSTER SURVEY .” The Astrophysical Journal 732, no. 1 (April 12, 2011): 33.© 2011 American Astronomical Society. https://orcid.org/0000-0002-1379-4482 en_US http://dx.doi.org/10.1088/0004-637x/732/1/33 Astrophysical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Physics/American Astronomical Society American Astronomical Society |
| spellingShingle | Brodwin, M. Stern, D. Vikhlinin, A. Stanford, S. A. Gonzalez, Anthony H. Eisenhardt, P. R. Ashby, M. L. N. Bautz, Marshall W. Dey, A. Forman, W. R. Gettings, D. P. Hickox, R. C. Jannuzi, Buell T. Jones, C. Mancone, C. L. Moustakas, L. A. Ruel, J. Snyder, G. Zeimann, G. Miller, Eric D X-RAY EMISSION FROM TWO INFRARED-SELECTED GALAXY CLUSTERS AT z > 1.4 IN THE IRAC SHALLOW CLUSTER SURVEY |
| title | X-RAY EMISSION FROM TWO INFRARED-SELECTED GALAXY CLUSTERS AT z > 1.4 IN THE IRAC SHALLOW CLUSTER SURVEY |
| title_full | X-RAY EMISSION FROM TWO INFRARED-SELECTED GALAXY CLUSTERS AT z > 1.4 IN THE IRAC SHALLOW CLUSTER SURVEY |
| title_fullStr | X-RAY EMISSION FROM TWO INFRARED-SELECTED GALAXY CLUSTERS AT z > 1.4 IN THE IRAC SHALLOW CLUSTER SURVEY |
| title_full_unstemmed | X-RAY EMISSION FROM TWO INFRARED-SELECTED GALAXY CLUSTERS AT z > 1.4 IN THE IRAC SHALLOW CLUSTER SURVEY |
| title_short | X-RAY EMISSION FROM TWO INFRARED-SELECTED GALAXY CLUSTERS AT z > 1.4 IN THE IRAC SHALLOW CLUSTER SURVEY |
| title_sort | x ray emission from two infrared selected galaxy clusters at z 1 4 in the irac shallow cluster survey |
| url | http://hdl.handle.net/1721.1/95726 https://orcid.org/0000-0002-1379-4482 |
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