تقرير
Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). IV. Discovery of 41 Quasars and Luminous Galaxies at 5.7 < z < 6.9
| العنوان: | Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). IV. Discovery of 41 Quasars and Luminous Galaxies at 5.7 < z < 6.9 |
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| المؤلفون: | Matsuoka, Y., Iwasawa, K., Onoue, M., Kashikawa, N., Strauss, M. A., Lee, C. -H., Imanishi, M., Nagao, T., Akiyama, M., Asami, N., Bosch, J., Furusawa, H., Goto, T., Gunn, J. E., Harikane, Y., Ikeda, H., Izumi, T., Kawaguchi, T., Kato, N., Kikuta, S., Kohno, K., Komiyama, Y., Lupton, R. H., Minezaki, T., Miyazaki, S., Morokuma, T., Murayama, H., Niida, M., Nishizawa, A. J., Oguri, M., Ono, Y., Ouchi, M., Price, P. A., Sameshima, H., Schulze, A., Shirakata, H., Silverman, J. D., Sugiyama, N., Tait, P. J., Takada, M., Takata, T., Tanaka, M., Tang, J. -J., Toba, Y., Utsumi, Y., Wang, S. -Y., Yamashita, T. |
| المصدر: | ApJS 237 (2018) 5 |
| سنة النشر: | 2018 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Astrophysics of Galaxies |
| الوصف: | We report discovery of 41 new high-z quasars and luminous galaxies, which were spectroscopically identified at 5.7 < z < 6.9. This is the fourth in a series of papers from the Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) project, based on the deep multi-band imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. We selected the photometric candidates by a Bayesian probabilistic algorithm, and then carried out follow-up spectroscopy with the Gran Telescopio Canarias and the Subaru Telescope. Combined with the sample presented in the previous papers, we have now spectroscopically identified 137 extremely-red HSC sources over about 650 deg2, which include 64 high-z quasars, 24 high-z luminous galaxies, 6 [O III] emitters at z ~ 0.8, and 43 Galactic cool dwarfs (low-mass stars and brown dwarfs). The new quasars span the luminosity range from M1450 ~ -26 to -22 mag, and continue to populate a few magnitude lower luminosities than have been probed by previous wide-field surveys. In a companion paper, we derive the quasar luminosity function at z ~ 6 over an unprecedentedly wide range of M1450 ~ -28 to -21 mag, exploiting the SHELLQs and other survey outcomes. Comment: ApJS in press. arXiv admin note: substantial text overlap with arXiv:1704.05854 |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.3847/1538-4365/aac724 |
| URL الوصول: | http://arxiv.org/abs/1803.01861 |
| رقم الأكسشن: | edsarx.1803.01861 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.3847/1538-4365/aac724 |
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