Near-infrared surface brightness fluctuation measurements with the Hubble Space Telescope's WFC3/IR channel
| العنوان: | Near-infrared surface brightness fluctuation measurements with the Hubble Space Telescope's WFC3/IR channel |
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| المؤلفون: | Joseph B. Jensen, Young-Wook Lee, Brigham S. French, Hyejeon Cho, Hyun-chul Lee, John P. Blakeslee |
| المصدر: | Proceedings of the International Astronomical Union. 8:371-374 |
| بيانات النشر: | Cambridge University Press (CUP), 2012. |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | Physics, Luminous infrared galaxy, Space and Planetary Science, Surface brightness fluctuation, Elliptical galaxy, Astronomy, Astronomy and Astrophysics, Astrophysics, Fornax Cluster, Hubble Ultra-Deep Field, Advanced Camera for Surveys, Wide Field Camera 3, Galaxy cluster |
| الوصف: | The surface brightness fluctuation (SBF) method at near-infrared (NIR) wavelengths is a powerful tool for estimating distances to unresolved stellar systems with high precision. The IR channel of the Wide Field Camera 3 (WFC3), installed on board the Hubble Space Telescope (HST) in 2009, has a greater sensitivity and a wider field of view than the previous generation of HST IR instruments, making it much more efficient for measuring distances to early-type galaxies in the Local Volume. To take full advantage of its capabilities, we need to empirically calibrate the SBF distance method for WFC3's NIR passbands. We present the SBF measurements for the WFC3/IR F160W bandpass filter using observations of 16 early-type galaxies in the Fornax and Virgo Clusters. These have been combined with existing (g475–z850) color measurements from the Advanced Camera for Surveys Virgo and Fornax Cluster Surveys to derive a space-based H160-band SBF relation as a function of color. We have also compared the absolute SBF magnitudes to those predicted by evolutionary population synthesis models in order to study stellar population properties in the target galaxies. |
| تدمد: | 1743-9221 1743-9213 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::b45c73042a584a631d1ca2708804c475 https://doi.org/10.1017/s1743921312021734 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........b45c73042a584a631d1ca2708804c475 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17439221 17439213 |
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