THE SWIFT BAT SURVEY DETECTS TWO OPTICAL BROAD LINE, X-RAY HEAVILY OBSCURED ACTIVE GALAXIES: NVSS 193013+341047 AND IRAS 05218-1212

被引:3
作者
Hogg, J. Drew [1 ]
Winter, Lisa M. [1 ]
Mushotzky, Richard F. [2 ]
Reynolds, Christopher S. [2 ]
Trippe, Margaret [2 ]
机构
[1] Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA
[2] Univ Maryland, Dept Astron, College Pk, MD 20742 USA
关键词
galaxies: active; galaxies: Seyfert; surveys; X-rays: galaxies; XMM-NEWTON OBSERVATIONS; GALACTIC NUCLEI; SPECTRAL PROPERTIES; SIMULTANEOUS ULTRAVIOLET; PHYSICAL CONDITIONS; HELLAS2XMM SURVEY; TIME VARIABILITY; SEYFERT-GALAXIES; RADIO GALAXIES; RED OBJECTS;
D O I
10.1088/0004-637X/752/2/153
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The Swift Burst Alert Telescope (BAT) is discovering interesting new objects while monitoring the sky in the 14-195 keV band. Here we present the X-ray properties and spectral energy distributions (SEDs) for two unusual active galactic nucleus sources. Both NVSS 193013+341047 and IRAS 05218-1212 are absorbed, Compton-thin, but heavily obscured (N-H similar to 10(23) cm(-2)), X-ray sources at redshifts <0.1. The SEDs reveal these galaxies to be very red, with high extinction in the optical and UV. A similar SED is seen for the extremely red objects (EROs) detected in the higher redshift universe. This suggests that these unusual BAT-detected sources are a low-redshift (z << 1) analog to EROs, which recent evidence suggests are a class of the elusive type II quasars. Studying the multi-wavelength properties of these sources may reveal the properties of their high-redshift counterparts.
引用
收藏
页数:8
相关论文
共 44 条
  • [1] The X-ray spectral properties of scuba galaxies
    Alexander, DM
    Bauer, FE
    Chapman, SC
    Smail, I
    Blain, AW
    Brandt, WN
    Ivison, RJ
    [J]. ASTROPHYSICAL JOURNAL, 2005, 632 (02) : 736 - 750
  • [2] The Chandra Deep Field North Survey. X. X-ray emission from very red objects
    Alexander, DM
    Vignali, C
    Bauer, FE
    Brandt, WN
    Hornschemeier, AE
    Garmire, GP
    Schneider, DP
    [J]. ASTRONOMICAL JOURNAL, 2002, 123 (03) : 1149 - 1162
  • [3] UNIFIED MODELS FOR ACTIVE GALACTIC NUCLEI AND QUASARS
    ANTONUCCI, R
    [J]. ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, 1993, 31 : 473 - 521
  • [4] Arnaud KA, 1996, ASTR SOC P, V101, P17
  • [5] Evidence for a circumnuclear and ionized absorber in the X-ray obscured broad-line radio galaxy 3C 445
    Braito, V.
    Reeves, J. N.
    Sambruna, R. M.
    Gofford, J.
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 414 (03) : 2739 - 2750
  • [6] BRINDLE C, 1990, MON NOT R ASTRON SOC, V244, P604
  • [7] XMM-Newton observations of Extremely Red Objects and the link with luminous, X-ray obscured quasars
    Brusa, M
    Comastri, A
    Daddi, E
    Pozzetti, L
    Zamorani, G
    Vignali, C
    Cimatti, A
    Fiore, F
    Mignoli, M
    Ciliegi, P
    Röttgering, HJA
    [J]. ASTRONOMY & ASTROPHYSICS, 2005, 432 (01) : 69 - 81
  • [8] ULTRAVIOLET AND OPTICAL-SPECTRA OF BROADLINE RADIO GALAXIES
    CRENSHAW, DM
    PETERSON, BM
    WAGNER, RM
    [J]. ASTRONOMICAL JOURNAL, 1988, 96 (04) : 1208 - 1214
  • [9] H I IN THE GALAXY
    DICKEY, JM
    LOCKMAN, FJ
    [J]. ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, 1990, 28 : 215 - 261
  • [10] The Serendipitous Extragalactic X-ray Source Identification (SEXSI) program. III. Optical spectroscopy
    Eckart, Megan E.
    Stern, Daniel
    Helfand, David J.
    Harrison, Fiona A.
    Mao, Peter H.
    Yost, Sarah A.
    [J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2006, 165 (01) : 19 - 56