2012ApJ...756...96W


Query : 2012ApJ...756...96W

2012ApJ...756...96W - Astrophys. J., 756, 96 (2012/September-1)

Submillimeter follow-up of WISE-selected hyperluminous galaxies.

WU J., TSAI C.-W., SAYERS J., BENFORD D., BRIDGE C., BLAIN A., EISENHARDT P.R.M., STERN D., PETTY S., ASSEF R., BUSSMANN S., COMERFORD J.M., CUTRI R., EVANS N.J.I., GRIFFITH R., JARRETT T., LAKE S., LONSDALE C., RHO J., STANFORD S.A., WEINER B., WRIGHT E.L. and YAN L.

Abstract (from CDS):

We have used the Caltech Submillimeter Observatory (CSO) to follow-up a sample of Wide-field Infrared Survey Explorer (WISE) selected, hyperluminous galaxies, the so-called W1W2-dropout galaxies. This is a rare (∼1000 all-sky) population of galaxies at high redshift (peaks at z = 2-3), which are faint or undetected by WISE at 3.4 and 4.6 µm, yet are clearly detected at 12 and 22 µm. The optical spectra of most of these galaxies show significant active galactic nucleus activity. We observed 14 high-redshift (z > 1.7) W1W2-dropout galaxies with SHARC-II at 350-850 µm, with nine detections, and observed 18 with Bolocam at 1.1 mm, with five detections. Warm Spitzer follow-up of 25 targets at 3.6 and 4.5 µm, as well as optical spectra of 12 targets, are also presented in the paper. Combining WISE data with observations from warm Spitzer and CSO, we constructed their mid-IR to millimeter spectral energy distributions (SEDs). These SEDs have a consistent shape, showing significantly higher mid-IR to submillimeter ratios than other galaxy templates, suggesting a hotter dust temperature. We estimate their dust temperatures to be 60-120 K using a single-temperature model. Their infrared luminosities are well over 1013 L. These SEDs are not well fitted with existing galaxy templates, suggesting they are a new population with very high luminosity and hot dust. They are likely among the most luminous galaxies in the universe. We argue that they are extreme cases of luminous, hot dust-obscured galaxies (DOGs), possibly representing a short evolutionary phase during galaxy merging and evolution. A better understanding of their long-wavelength properties needs ALMA as well as Herschel data.

Abstract Copyright:

Journal keyword(s): galaxies: formation - galaxies: high-redshift - galaxies: ISM - galaxies: starburst - infrared: galaxies

Simbad objects: 36

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Number of rows : 36
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 WISE J002609.24+201556.2 G 00 26 09.24 +20 15 56.2           ~ 1 0
2 SDSS J011601.42-050503.9 QSO 01 16 01.429 -05 05 03.93           ~ 16 0
3 WISE J014946.16+235014.6 G 01 49 46.16 +23 50 14.6           ~ 10 0
4 WISE J021134.63-224223.4 G 02 11 34.63 -22 42 23.4           ~ 1 0
5 SDSS J022052.11+013711.1 QSO 02 20 52.115 +01 37 11.15           ~ 21 0
6 WISE J024344.18+415809.1 G 02 43 44.18 +41 58 09.1           ~ 3 0
7 WISE J024858.81+270529.8 G 02 48 58.81 +27 05 29.8           ~ 4 0
8 WISE J033851.33+194128.6 G 03 38 51.33 +19 41 28.6           ~ 4 0
9 WISE J041010.60-091305.2 G 04 10 10.60 -09 13 05.2           ~ 15 0
10 WISE J042248.82-102832.0 G 04 22 48.82 -10 28 32.0           ~ 3 0
11 RAFGL 618 pA* 04 42 53.6242032600 +36 06 53.400902220   16.32   12.59   C-rich 985 0
12 WISE J054230.90-270540.5 G 05 42 30.90 -27 05 40.5           ~ 4 0
13 NAME NGC 2071 IR SFR 05 47 04.4 +00 21 49           ~ 67 0
14 WISE J075725.07+511319.7 G 07 57 25.07 +51 13 19.7           ~ 6 0
15 SDSS J085124.78+314855.7 QSO 08 51 24.789 +31 48 55.72           ~ 10 0
16 WISE J085628.08+000548.7 G 08 56 28.08 +00 05 48.7           ~ 2 0
17 WISE J085929.94+482302.3 G 08 59 29.94 +48 23 02.3           ~ 9 0
18 WISE J092625.44+423251.9 G 09 26 25.44 +42 32 51.9           ~ 2 0
19 IRC +10216 C* 09 47 57.40632 +13 16 43.5648           C9,5e 2256 0
20 FIRST J114612.8+412914 AG? 11 46 12.8610 +41 29 14.209           ~ 4 0
21 Mrk 231 Sy1 12 56 14.2341182928 +56 52 25.238373852   14.68 13.84     ~ 1914 3
22 WISE J131628.53+351235.1 G 13 16 28.53 +35 12 35.1           ~ 5 0
23 WISE J140925.56+133502.1 G 14 09 25.56 +13 35 02.1           ~ 2 0
24 WISE J142228.86+561355.6 G 14 22 28.86 +56 13 55.6           ~ 3 0
25 NAME NOAO Deep Wide Field reg 14 32 05.75 +34 16 47.5           ~ 365 0
26 IC 4553 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 2848 4
27 FIRST J160357.3+274552 AG? 16 03 57.3974 +27 45 53.142           ~ 8 0
28 AMS 16 QSO 17 19 42.1 +58 47 09           ~ 9 0
29 WISE J181417.29+341224.9 G 18 14 17.29 +34 12 24.9           ~ 23 0
30 WISE J183013.53+650420.5 G 18 30 13.53 +65 04 20.5           ~ 4 0
31 WISE J183533.71+435549.1 G 18 35 33.71 +43 55 49.1           ~ 15 0
32 OH 34.26 +0.15 SFR 18 53 18.54 +01 14 57.9           ~ 484 0
33 NAME K 3-50A HII 20 01 45.6 +33 32 42           ~ 78 0
34 W 58a HII 20 01 45.8 +33 32 43           ~ 283 4
35 WISE J220743.84+193940.3 G 22 07 43.84 +19 39 40.3           ~ 6 0
36 WISE J223810.20+265319.8 G 22 38 10.20 +26 53 19.8           ~ 4 0

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2022.10.07-05:47:53

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