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Deep Near-Infrared Surveys and Young Brown Dwarf Populations in Star-Forming Regions

Published online by Cambridge University Press:  26 May 2016

M. Tamura ,
T. Naoi ,
Y. Oasa ,
Y. Nakajima ,
C. Nagashima ,
T. Nagayama ,
D. Baba ,
T. Nagata ,
S. Sato  and
D. Kato
...Show all authors
M. Tamura
Affiliation:
National Astronomical Observatory, Osawa 2–21–1, Mitaka, Tokyo 181–8588, Japan
T. Naoi
Affiliation:
University of Tokyo, Osawa 2–21–1, Mitaka, Tokyo 181–8588, Japan
Y. Oasa
Affiliation:
NASDA, Harumi, Chuo-ku, Tokyo 104–6023, Japan
Y. Nakajima
Affiliation:
Nagoya University, Chikusa, Nagoya 464–8602, Japan
C. Nagashima
Affiliation:
Nagoya University, Chikusa, Nagoya 464–8602, Japan
T. Nagayama
Affiliation:
Nagoya University, Chikusa, Nagoya 464–8602, Japan
D. Baba
Affiliation:
Nagoya University, Chikusa, Nagoya 464–8602, Japan
T. Nagata
Affiliation:
Nagoya University, Chikusa, Nagoya 464–8602, Japan
S. Sato
Affiliation:
Nagoya University, Chikusa, Nagoya 464–8602, Japan
D. Kato
Affiliation:
Nagoya University, Chikusa, Nagoya 464–8602, Japan
M. Kurita
Affiliation:
Nagoya University, Chikusa, Nagoya 464–8602, Japan
K. Sugitani
Affiliation:
Nagoya City College, Mizuho, Nagoya 467–8501, Japan
Y. Itoh
Affiliation:
Kobe University, Rokkodai 1–1, Hyogo 657–8501, Japan
H. Nakaya
Affiliation:
Subaru Telescope, 650 N. A'ohoku Place, Hilo, HI 96720, USA
A. Pickles
Affiliation:
University of Hawaii, Hilo, HI 96720, USA

Abstract

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We are currently conducting three kinds of IR surveys of star forming regions (SFRs) in order to seek for very low-mass young stellar populations. First is a deep JHKs-bands (simultaneous) survey with the SIRIUS camera on the IRSF 1.4m or the UH 2.2m telescopes. Second is a very deep JHKs survey with the CISCO IR camera on the Subaru 8.2m telescope. Third is a high resolution companion search around nearby YSOs with the CIAO adaptive optics coronagraph IR camera on the Subaru. In this contribution, we describe our SIRIUS camera and present preliminary results of the ongoing surveys with this new instrument.

Type
Part 2. Observations of Recently Born Substellar Objects
Information
Symposium - International Astronomical Union , Volume 211: Brown Dwarfs , 2003 , pp. 87 - 90
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

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