2019MNRAS.482.5422R

Query : 2019MNRAS.482.5422R

2019MNRAS.482.5422R - Mon. Not. R. Astron. Soc., 482, 5422-5429 (2019/February-1)

New GTC spectroscopic data and a statistical study to better constrain the redshift of the BL Lac RGB J2243 + 203.

ROSA GONZALEZ D., MURIEL H., MAYYA Y.D., ARETXAGA I., BECERRA GONZALEZ J., CARRAMINANA A., MENDEZ-ABREU J., VEGA O., TERLEVICH E., COUTINO DE LEON S., FURNISS A., LONGINOTTI A.L., TERLEVICH R.J., PICHEL A.C., ROVERO A.C. and DONZELLI C.

Abstract (from CDS):

We present new spectroscopic data of the BL Lac RGB 2243 + 203, and its surroundings, obtained with the OSIRIS Multi Object Spectrograph (MOS) mounted in the Gran Telescopio Canarias (GTC). The spectra of neither the BL Lac nor its host galaxy show any spectral feature, thus hindering direct determination of its redshift. The spectroscopic redshift distribution of objects in the MOS field of view shows four galaxies with redshift between 0.5258 and 0.5288. We make use of a statistical analysis to test the possibility that the targeted BL Lac may be a member of that group. By using the spectroscopic redshifts obtained with our GTC observations, we found that this probability is between 86 and 93 per cent.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): BL Lacertae objects: individual: RGB 2243 + 203 - galaxies: distances and redshifts

Simbad objects: 31

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Number of rows : 31
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 PKS J0449-4350 BLL 04 49 24.6981911928 -43 50 08.960970948 14.95 17.52 15.24 16.27   ~ 190 1
2 RX J0909.0+2311 BLL 09 09 00.6253772472 +23 11 12.975311832       16.7   ~ 70 1
3 PG 1424+240 BLL 14 27 00.3917926224 +23 48 00.037510776 14.52 14.34 14.95 14.5   ~ 420 1
4 Ross 640 WD* 16 28 25.0030896166 +36 46 15.846877416   14.01   13.9   DZ6 220 0
5 SDSS J224343.96+202242.1 G 22 43 43.96800 +20 22 42.1968           ~ 1 0
6 SDSS J224344.66+202156.7 G 22 43 44.66760 +20 21 56.7792           ~ 1 0
7 SDSS J224344.97+202110.0 G 22 43 44.97336 +20 21 10.0692           ~ 1 0
8 SDSS J224345.59+202059.6 G 22 43 45.59856 +20 20 59.6724           ~ 1 0
9 SDSS J224348.23+202138.6 G 22 43 48.23256 +20 21 38.6748           ~ 1 0
10 SDSS J224349.72+202145.9 G 22 43 49.72656 +20 21 45.9900           ~ 1 0
11 SDSS J224352.70+202156.8 G 22 43 52.70904 +20 21 56.8368           ~ 1 0
12 SDSS J224353.28+202151.4 G 22 43 53.28816 +20 21 51.4296           ~ 1 0
13 SDSS J224353.75+202039.1 G 22 43 53.75784 +20 20 39.1056           ~ 1 0
14 NVSS J224354+202103 BLL 22 43 54.7436079792 +20 21 03.775386276       16.1   ~ 116 1
15 SDSS J224355.43+202152.2 G 22 43 55.43928 +20 21 52.2504           ~ 1 0
16 SDSS J224356.80+202028.6 G 22 43 56.8102152120 +20 20 28.656981312           ~ 1 0
17 SDSS J224357.84+202114.1 G 22 43 57.84216 +20 21 14.1156           ~ 1 0
18 SDSS J224357.98+202041.2 G 22 43 57.98616 +20 20 41.2800           ~ 1 0
19 SDSS J224358.67+202055.3 G 22 43 58.67328 +20 20 55.3704           ~ 1 0
20 SDSS J224359.13+202040.1 G 22 43 59.13864 +20 20 40.1604           ~ 1 0
21 SDSS J224401.06+202236.1 G 22 44 01.06512 +20 22 36.1020           ~ 1 0
22 SDSS J224401.41+202139.3 G 22 44 01.41168 +20 21 39.3552           ~ 1 0
23 SDSS J224404.97+202103.4 G 22 44 04.97616 +20 21 03.4236           ~ 1 0
24 SDSS J224406.00+202057.0 G 22 44 06.00984 +20 20 57.0192           ~ 1 0
25 SDSS J224406.27+202224.3 G 22 44 06.27696 +20 22 24.3300           ~ 1 0
26 SDSS J224406.63+202218.1 QSO 22 44 06.6329972712 +20 22 18.197474160           ~ 5 0
27 SDSS J224407.65+202042.0 G 22 44 07.6555399200 +20 20 42.065503728           ~ 1 0
28 SDSS J224408.06+202155.7 G 22 44 08.06136 +20 21 55.7316           ~ 1 0
29 SDSS J224409.37+202150.2 G 22 44 09.37512 +20 21 50.2416           ~ 1 0
30 SDSS J224411.78+202021.5 G 22 44 11.78400 +20 20 21.5952           ~ 1 0
31 SDSS J224413.01+202139.8 G 22 44 13.01832 +20 21 39.8916           ~ 1 0

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