2002MNRAS.329..221B

Query : 2002MNRAS.329..221B

2002MNRAS.329..221B - Mon. Not. R. Astron. Soc., 329, 221-226 (2002/January-1)

High-redshift QSOs in the FIRST survey.

BENN C.R., VIGOTTI M., PEDANI M., HOLT J., MACK K.-H., CURRAN R. and SANCHEZ S.F.

Abstract (from CDS):

In a pilot search for high-redshift radio quasi-stellar objects (QSOs), we have obtained spectra of 55 FIRST sources (S_1.4 GHz>1 mJy) with very red {formmu2} (O-E>3) starlike optical identifications. 10 of the candidates are QSOs with redshifts 3.6<z<4.4 (four were previously known), six with {formmu4} z>4. The remaining 45 candidates comprise: one z=2.6 broad-absorption-line (BAL) QSO; three low-redshift galaxies with narrow emission lines; 18 probable radio galaxies; and 23 M stars (mainly misidentifications). The success rate (high-redshift QSOs/ spectroscopically-observed candidates) for this search is 1/2 for {formmu6} S_1.4 GHz>10 mJy, and 1/9 for S_1.4 GHz>1 mJy. With an effective search area of 4030deg2, the surface density of high-redshift {formmu8} (z>4) QSOs discovered with this technique is 0.0015deg–2.

Abstract Copyright: The Royal Astronomical Society

Journal keyword(s): quasars: emission lines - quasars: general - early Universe - radio continuum: galaxies

Simbad objects: 52

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Number of rows : 52
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 2MASS J07235996+5239491 * 07 23 59.9627412984 +52 39 49.116941532           ~ 1 0
2 [VV2006] J072518.3+370517 QSO 07 25 18.21 +37 05 19.3   24.32 21.09 19.5 18.7 ~ 11 0
3 2MASS J07280147+3803448 LM* 07 28 01.4741330448 +38 03 44.913286008           M1V 4 0
4 2MASS J07414439+3335493 LM* 07 41 44.3785682472 +33 35 49.454081016           M2V 4 0
5 QSO J0747+2739 QSO 07 47 11.1466907592 +27 39 03.365989812     17.20     ~ 74 0
6 QSO J0831+5245 QSO 08 31 41.7108197808 +52 45 17.616994560   19.2   14.5 13.9 ~ 574 1
7 [VV2006] J083946.1+511203 QSO 08 39 46.2164854008 +51 12 02.827270296   22.29 20.66 18.9 18.3 ~ 72 1
8 NVSS J084407+280741 * 08 44 07.2768659088 +28 07 40.403988300           M 1 0
9 2MASS J08570054+2755401 LM* 08 57 00.5510270376 +27 55 40.200713868           M1V 3 0
10 2MASS J09055636+2244187 LM* 09 05 56.3585552016 +22 44 18.916317240           M3V 3 0
11 FIRST J091441.3+295621 rG 09 14 41.2991157970 +29 56 21.577262448           ~ 1 0
12 2MASS J09195381+3409068 LM* 09 19 53.8197303000 +34 09 06.711376176           M3V 4 0
13 NVSS J093256+353442 Rad 09 32 55.760 +35 34 39.18           ~ 1 0
14 [VV2006] J094119.3+511932 QSO 09 41 19.4276768616 +51 19 32.885710356   20.65 19.06 18.02   ~ 11 0
15 2MASS J10012517+3706292 LM* 10 01 25.1591219064 +37 06 29.211843924           M1V 4 0
16 2MASS J10105823+2832466 QSO 10 10 58.2353487864 +28 32 47.129651988           ~ 3 0
17 [VV2006] J103549.9+300732 QSO 10 35 49.9248932376 +30 07 32.129318748   21.03 19.86     ~ 7 1
18 FIRST J103647.8+420852 rG 10 36 47.7815524907 +42 08 52.849887425           ~ 1 0
19 FIRST J104622.8+345436 rG 10 46 22.8992304651 +34 54 35.845070644           ~ 1 0
20 NVSS J104801+260032 rG 10 48 01.5959125896 +26 00 32.893669440           ~ 4 0
21 FIRST J104958.4+411043 rG 10 49 58.4407490687 +41 10 43.487908414           ~ 1 0
22 2MASS J10510231+3149153 LM* 10 51 02.3209530024 +31 49 15.306615516           M3V 3 0
23 NVSS J105719+342810 rG 10 57 19.799 +34 28 07.13           ~ 3 0
24 2MASS J10575001+3533004 Sy1 10 57 50.0382595152 +35 33 00.513073260   22.16 20.82     ~ 9 0
25 QSO J1057+4555 QSO 10 57 56.2610108784 +45 55 53.070401748   20.19 18.80 17.2 16.8 ~ 118 0
26 FIRST J111212.6+431015 Rad 11 12 12.764 +43 10 15.12           ~ 1 0
27 FIRST J111411.2+293244 rG 11 14 11.2881880824 +29 32 44.656547431           ~ 3 0
28 FIRST J111557.9+352757 rG 11 15 57.94806 +35 27 57.2408           ~ 1 0
29 FIRST J111707.0+411736 rG 11 17 07.05840 +41 17 36.5820           ~ 1 0
30 FIRST J112028.0+345829 rG 11 20 28.1246653162 +34 58 29.502058850           ~ 1 0
31 2MASS J11251806+4951579 * 11 25 18.0118606368 +49 51 57.435972876           M 1 0
32 2MASS J11304309+5141338 LM* 11 30 43.0870648632 +51 41 33.900555264           M2V 5 0
33 FIRST J115230.1+271808 rG 11 52 30.1909150680 +27 18 08.835696576           ~ 7 0
34 2MASS J12084977+3929073 LM* 12 08 49.7671979688 +39 29 07.230847056           M1V 4 0
35 FIRST J121532.1+250956 rG 12 15 32.1687361560 +25 09 56.565163512           ~ 3 0
36 [VV2006] J122027.9+261904 QSO 12 20 27.9578921016 +26 19 03.507369204   20.12 19.16     ~ 29 0
37 FIRST J124450.9+353906 rG 12 44 50.9551515720 +35 39 06.946959348           ~ 2 0
38 FIRST J130605.0+352604 rG 13 06 05.04744 +35 26 04.3296           ~ 1 0
39 [VV2006] J130940.6+573309 QSO 13 09 40.6881155592 +57 33 09.929512008   21.94 20.68 19.5   ~ 40 0
40 2MASS J13290316+3230301 LM* 13 29 03.1445744424 +32 30 30.192421968           M1V 4 0
41 2MASS J13383336+5316427 * 13 38 33.37 +53 16 42.8           M 1 0
42 SDSS J134951.94+382334.1 QSO 13 49 51.9407078208 +38 23 34.179342828   21.35 20.18     ~ 28 0
43 6C 134907+385133 QSO 13 51 19.8446904312 +38 38 14.206835904   20.69 20.30     ~ 20 1
44 2MASS J13535752+3436591 * 13 53 57.5342518176 +34 36 59.075371440           M 1 0
45 FIRST J140816.6+352205 rG 14 08 16.6932363703 +35 22 06.051259825           ~ 1 0
46 [VV2006] J142308.0+224219 QSO 14 23 08.2380679776 +22 41 58.095930660       19.9 20.1 ~ 11 1
47 FIRST J143749.2+325917 rG 14 37 49.30857 +32 59 17.9228           ~ 1 0
48 2MASS J15093901+4346487 LM* 15 09 39.0117559152 +43 46 48.748573884       18.47   M2V 5 0
49 [VV2006] J151601.5+430931 QSO 15 16 01.5237340488 +43 09 31.432065264   19.47 19.02     ~ 28 0
50 2MASS J16115068+4344126 LM* 16 11 50.6847416976 +43 44 12.713555616           M2V 5 0
51 [VV2006] J163950.5+434004 QSO 16 39 50.5194357432 +43 40 03.701223408   19.59 18.67 17.8 17.4 ~ 45 1
52 2MASS J16440168+4200489 LM* 16 44 01.6910644560 +42 00 48.820850352           M2V 4 0

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