2004ApJ...607...60G

Query : 2004ApJ...607...60G

2004ApJ...607...60G - Astrophys. J., 607, 60-75 (2004/May-3)

FIRST-2MASS sources below the APM detection threshold: a population of highly reddened quasars.

GLIKMAN E., GREGG M.D., LACY M., HELFAND D.J., BECKER R.H. and WHITE R.L.

Abstract (from CDS):

We have constructed a sample of bright near-infrared sources that are detected at radio wavelengths but undetected on the first-generation Palomar Observatory Sky Survey (POSSI) plates in order to search for a population of dust-obscured quasars. Optical and infrared spectroscopic follow-up of the sample has led to the discovery of 17 heavily reddened quasars (B-K>6.5), 14 of which are reported here for the first time. This has allowed us to define a region in the R-K, J-K color plane in which 50% of the radio-selected objects are highly reddened quasars. We compare the surface density of this previously overlooked population to that of ultraviolet-excess radio-selected quasars, finding that they make up ∼20% of the total quasar population for K≲15.5.

Abstract Copyright: ∼

Journal keyword(s): ISM: Dust, Extinction - Galaxies: Quasars: General - Surveys

VizieR on-line data: <Available at CDS (J/ApJ/607/60): table2.dat>

Nomenclature: Table 2: F2M JHHMMSS.ss+DDMMSS.s N=69.

Simbad objects: 69

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Number of rows : 69
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NVSS J000025-095752 rG 00 00 25.5604557048 -09 57 52.926161364   22.11   19.20   ~ 3 0
2 NVSS J004329-101036 rG 00 43 29.30 -10 10 35.6   21.48   18.64   ~ 3 0
3 2MASS J00440277-1054186 G 00 44 02.77 -10 54 18.6   22.34   19.10   ~ 4 0
4 2MASS J01002331-1007595 LM* 01 00 23.3984434464 -10 07 59.833418268   22.50   20.09   M4V 4 0
5 2MASS J01020145-0840146 Q? 01 02 01.3990059264 -08 40 14.361043548   22.33   19.53   ~ 1 0
6 2MASS J01171276-0127558 G 01 17 12.77 -01 27 55.8   22.50   20.80   ~ 3 0
7 2MASS J01251601-0916584 GiC 01 25 15.9998506176 -09 16 58.154412396   21.53   18.63   ~ 3 0
8 2MASS J01283700+0002373 BiC 01 28 36.974 +00 02 37.08   17.78   16.33   ~ 8 0
9 2MASS J01331949-0056050 Q? 01 33 19.5413887800 -00 56 04.809963876   20.27   18.35   ~ 3 0
10 QSO B0132-097 QSO 01 34 35.6657627616 -09 31 02.903742300   24.52 22.70 20.80   ~ 110 1
11 2MASS J01595830-0504275 Q? 01 59 58.31 -05 04 27.6   21.61   19.18   ~ 1 0
12 2MASS J02010578-0317569 Q? 02 01 05.78 -03 17 56.9   21.70   19.16   ~ 1 0
13 2MASS J02025976-0923442 G 02 02 59.76 -09 23 44.3   21.65   19.17   ~ 1 0
14 2MASS J02080438-0323500 G 02 08 04.39 -03 23 50.0   21.51   18.60   ~ 1 0
15 2MASS J02095436-0413413 Q? 02 09 54.36 -04 13 41.4   20.23   18.31   ~ 2 0
16 2MASS J02145034-0344585 Q? 02 14 50.3487353256 -03 44 58.617319920   21.52   18.90   ~ 2 0
17 2MASS J02453442-0700530 Q? 02 45 34.4274463752 -07 00 53.421763572   21.30   18.67   ~ 1 0
18 2MASS J07052567+4359366 Q? 07 05 25.68 +43 59 36.6   20.71   18.63   ~ 1 0
19 2MASS J07242399+2626446 G 07 24 24.00 +26 26 44.7   21.27   20.80   ~ 2 0
20 2MASS J07281242+2240377 QSO 07 28 12.42 +22 40 37.8   22.50   19.39   ~ 4 0
21 2MASS J07333960+4525211 G 07 33 39.60 +45 25 21.1   22.50   19.09   ~ 3 0
22 2MASS J07380606+2141031 AGN 07 38 06.06 +21 41 03.1   22.50   20.80   ~ 4 0
23 QSO J0738+2750 QSO 07 38 20.0980570896 +27 50 45.297215268   23.21 21.82 20.80   ~ 30 0
24 2MASS J08122913+2507304 Q? 08 12 29.14 +25 07 30.5   22.50   19.17   ~ 1 0
25 QSO J0825+4716 QSO 08 25 02.059 +47 16 51.99   21.19 20.77 20.45   ~ 14 0
26 QSO J0834+3506 QSO 08 34 06.9392869320 +35 06 02.825208216   21.41 20.56 18.96   ~ 24 0
27 2MASS J08395483+1712486 LM* 08 39 54.8334375888 +17 12 48.941244180   22.50   20.80   M5V 3 0
28 QSO J0841+3604 QSO 08 41 04.981 +36 04 50.34   22.05 21.29 20.80   ~ 13 0
29 FIRST J085555.6+364751 Rad 08 55 55.74 +36 47 51.3   22.50   20.80   ~ 1 0
30 2MASS J09002274+2011110 LM* 09 00 22.7432975928 +20 11 11.025872880   22.50   20.80   M5V 3 0
31 7C 090323.89+500501.00 QSO 09 06 51.50598467 +49 52 35.9494236   21.63 21.31 20.80   ~ 22 1
32 FIRST J090849.7+132515 Q? 09 08 49.78 +13 25 15.9   22.50   19.05   ~ 1 0
33 [VV2006] J092145.7+191812 QSO 09 21 45.7126491576 +19 18 16.142183856   22.63 22.17 20.12   ~ 9 0
34 2MASS J09271535+1607591 LM* 09 27 15.3385466592 +16 07 59.028682368   22.50   20.80   M5V 3 0
35 NVSS J093414+465503 Rad 09 34 14.8837798152 +46 55 05.140469280   21.14   19.77   ~ 3 1
36 2MASS J09445193+3113526 G 09 44 51.94 +31 13 52.7   22.50   19.65   ~ 2 0
37 F2M J094642.55+184034.0 AGN 09 46 42.6 +18 40 32   22.50   20.80   ~ 3 0
38 F2M J094909.62+185647.9 G 09 49 09.62 +18 56 47.9   21.28   18.57   ~ 1 0
39 2MASS J09503246+1852232 G 09 50 32.47 +18 52 23.2   22.50   19.64   ~ 3 0
40 2MASS J09543875+1735247 LM* 09 54 38.7542935896 +17 35 24.477496476   21.46   19.43   M4V 3 0
41 2MASS J09562314-0010218 Q? 09 56 23.1671450664 -00 10 21.825087924   21.28   19.07   ~ 1 0
42 2MASS J09585362+1238231 Q? 09 58 53.63 +12 38 23.1   20.74   19.34   ~ 4 0
43 QSO J1004+1229 QSO 10 04 24.8871 +12 29 22.245   24.83 23.23 20.80   ~ 52 1
44 QSO J1012+2825 QSO 10 12 30.507 +28 25 27.52   22.78 21.85 20.80   ~ 11 0
45 2MASS J10152856+1207517 Sy2 10 15 28.56 +12 07 51.8   22.15 22.15 19.56   ~ 5 0
46 2MASS J10222934+1929385 Sy2 10 22 29.3646998448 +19 29 39.094591056   21.92 20.61 19.20   ~ 11 0
47 2MASS J10491824+1544586 G 10 49 18.240 +15 44 58.66   22.50   20.80   ~ 4 0
48 QSO J1118-0033 QSO 11 18 11.044 -00 33 40.91   21.63 20.89 19.87   ~ 10 0
49 QSO J1151+5359 QSO 11 51 24.1006822824 +53 59 57.195191512   21.43 21.04 20.80   ~ 11 0
50 2MASS J11573361+1611394 LM* 11 57 33.6108427728 +16 11 39.516470520   22.50   20.80   M7V 3 0
51 2MASS J12025534+2615189 Sy2 12 02 55.34 +26 15 19.0   20.69 20.69 19.34   ~ 7 0
52 FIRST J120827.7+170814 G 12 08 27.758 +17 08 14.07   22.11   19.40   ~ 2 0
53 [VV2006] J121903.1+190513 QSO 12 19 03.1042484784 +19 05 12.868055988   22.50   19.35   ~ 11 0
54 2MASS J12230280+1752466 * 12 23 02.8193318112 +17 52 46.643452176   22.12   19.63   ~ 1 0
55 FIRST J122924.8+250921 Q? 12 29 24.80 +25 09 21.0   22.50   20.21   ~ 2 0
56 2MASS J13005353+1901019 Q? 13 00 53.5188615888 +19 01 01.615877544   22.03   18.69   ~ 1 0
57 2MASS J13052616-0354393 G 13 05 26.16 -03 54 39.4   20.95   18.76   ~ 2 0
58 [VV2006] J134108.1+330110 QSO 13 41 08.1099993672 +33 01 10.348643496   22.80 21.68 20.80   ~ 17 1
59 [VV2006] J135308.7+365752 QSO 13 53 08.648 +36 57 51.39   22.50   20.80   ~ 9 0
60 [VV2006] J135941.2+315740 QSO 13 59 41.17 +31 57 41.2   21.63   19.56   ~ 7 0
61 2MASS J14090827+5211324 LM* 14 09 08.2754278392 +52 11 32.532987624   21.14   18.68   M3V 4 0
62 2MASS J14173630+2253446 G 14 17 36.31 +22 53 44.6   22.50   20.80   ~ 1 0
63 2MASS J14224617+2404113 * 14 22 46.18 +24 04 11.4   22.50   20.80   M 3 0
64 2MASS J14481215+3056138 G 14 48 12.16 +30 56 13.8   22.02   19.39   ~ 3 0
65 QSO J1507+3129 QSO 15 07 18.1058124504 +31 29 42.453753900   22.00 21.16 19.87   ~ 10 0
66 FIRST J155718.7+380850 Rad 15 57 18.70 +38 08 50.8   22.50   19.20   ~ 1 0
67 QSO J1656+3821 QSO 16 56 47.128 +38 21 36.70   23.70 22.68 20.80   ~ 13 0
68 2MASS J22243841-0007498 G 22 24 38.413 -00 07 49.83   22.50   19.78   ~ 5 0
69 2MASS J23383287-1022372 LM* 23 38 32.8799773584 -10 22 37.564299696   22.41   19.83   M4V 4 0

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