YOUR LOGO The FUS(FIRST-UKIDSS-SDSS) RED Quasar Survey Dohyeong Kim 2011-30126 서울대학교 천문학과 김도형

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Presentation transcript:

YOUR LOGO The FUS(FIRST-UKIDSS-SDSS) RED Quasar Survey Dohyeong Kim 서울대학교 천문학과 김도형

YOUR LOGO Introduction AGN -Supermassive Black Hole -Enormous energy Feedback mechanism -One phase of galaxy evolution 서울대학교 천문학과 김도형 NGC7742 (Type 1)

YOUR LOGO Introduction RED AGN -Dust reddened AGN -Occupy more than 50% of AGN population (Tozzi et al. 2006) - R-K> 5 and J-K> 1.3 (Urrutia et al. 2009; Cutri et al. 2001) -Initial phase of AGN (Hopkins & Hernquist 2006) 서울대학교 천문학과 김도형

YOUR LOGO ULIRG Red AGNs AGNs Normal Galaxy

YOUR LOGO Intro- Previous Work  The FIRST-2MASS Red Quasar Survey (Glikman et al. 2007; Urrutia et al. 2009)  Selection Process 서울대학교 천문학과 김도형

YOUR LOGO FIRST Survey  Faint Images of the Radio Sky at Twenty-Centimeters  Significant detection for the catalog at the 5-sigma level of 1mJy  From FIRST survey, most of the stars will be removed 서울대학교 천문학과 김도형

YOUR LOGO FIRST Survey The status of FIRST survey observation

YOUR LOGO 2MASS  The 2 Micron All Sky Survey at IPAC  Observing all sky with J(1.24), H(1.66) and K(2.16)  Point Source Catalog (PSC)  J<15.8, H<15.1 and K s <14.3 서울대학교 천문학과 김도형

YOUR LOGO 서울대학교 천문학과 김도형 Selection Process UKIDSS dr 8 plus dr 7

YOUR LOGO UKIDSS-LAS 서울대학교 천문학과 김도형

YOUR LOGO 서울대학교 천문학과 김도형 UKIDSS-LAS dr 8 plus + SDSS dr 7 area

YOUR LOGO FUS Red QSO  Extended red, dusty quasars about 2 mag deeper 서울대학교 천문학과 김도형

YOUR LOGO AGNs ULIRG FUS Red QSO 서울대학교 천문학과 김도형 Kawakatu+ 2006

YOUR LOGO Dust extinction level  Moderately extincted red quasars E(B-V)~0.5 서울대학교 천문학과 김도형 Urrutia+ 2009

YOUR LOGO Sample selection 서울대학교 천문학과 김도형 UKIDSSSDSSFIRST J-K>1.5 & r`-K> 개 K<17 & i< 개 21< i < 22 : 14 개 (with low dec) 20< i < 21 : 13 개 i < 20 : 13 개

YOUR LOGO Spectroscopy observation  1. Confirm red QSO  2. Estimate redshift value  3. Estimate E(B-V) value 서울대학교 천문학과 김도형

YOUR LOGO MARS on KPNO 서울대학교 천문학과 김도형 21< i < 22 : 14 개 (with low dec) 20< i < 21 : 13 개 i < 20 : 13 개 MARS

YOUR LOGO GMOS on Gemini-South 서울대학교 천문학과 김도형 21< i < 22 : 14 개 (with low dec) 20< i < 21 : 13 개 i < 20 : 13 개 The Gemini Multi-Object Spectrographs (GMOS) 0.36~1.10 micron m wavelength range for long slit mode

YOUR LOGO Estimating BH mass with Paschen line 서울대학교 천문학과 김도형 IRTF SpeX data of F2MS

YOUR LOGO Establish SED of red QSO& estimate eddington ratio  XMM& ROSAT (X-ray)  GALEX (UV)  SDSS (optical)  UKIDSS (NIR)  WISE& SPITZER (MIR)  FIRST (radio) 서울대학교 천문학과 김도형 Richards+ 2006

YOUR LOGO Red QSO study 서울대학교 천문학과 김도형 Kawakatu+ 2006

YOUR LOGO Thank you 서울대학교 천문학과 김도형