2024MNRAS.531.5084K

Query : 2024MNRAS.531.5084K

2024MNRAS.531.5084K - Mon. Not. R. Astron. Soc., 531, 5084-5096 (2024/July-2)

Galaxy group-associated distances to very high energy gamma-ray emitting BL Lacs KUV 00311-1938 and S2 0109+22.

KOLJONEN K.I.I., LINDFORS E., NILSSON K., HEINAMAKI P. and KOTILAINEN J.

Abstract (from CDS):

Blazars constitute the most numerous source class in the known extragalactic population of very high energy (VHE) gamma-ray sources. However, determining their redshifts is often challenging due to weak or non-existent emission lines in their spectra. This study focuses on two BL Lacs, KUV 00311-1938 and S2 0109+22, where previous attempts at redshift determination have faced difficulties. By combining spectroscopic observations with photometric redshift estimates, we tentatively assign a redshift of $z=0.634$ to KUV 00311-1938 and a likely redshift of $z=0.49$ to S2 0109+22. Establishing redshift estimates for high-redshift blazars is crucial for understanding extragalactic VHE gamma-ray sources and their interactions with the surrounding Universe.

Abstract Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): BL Lacertae objects: general - galaxies: distances and redshifts - galaxies: groups: general

Simbad objects: 91

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Number of rows : 91
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 SDSS J003323.81-192055.4 G 00 33 23.81064 -19 20 55.4892           ~ 2 0
2 SDSS J003323.90-192008.8 G 00 33 23.90352 -19 20 08.8872           ~ 2 0
3 SDSS J003325.12-192231.8 G 00 33 25.12176 -19 22 31.8072           ~ 2 0
4 SDSS J003325.85-192231.7 G 00 33 25.85184 -19 22 31.7352           ~ 2 0
5 SDSS J003325.97-192330.4 G 00 33 25.97004 -19 23 30.4899           ~ 1 0
6 SDSS J003326.26-192143.3 G 00 33 26.26872 -19 21 43.3044           ~ 2 0
7 SDSS J003326.44-191951.4 G 00 33 26.4433357961 -19 19 51.427646742           ~ 3 0
8 SDSS J003327.40-192326.5 G 00 33 27.40032 -19 23 26.5956           ~ 2 0
9 SDSS J003328.48-192331.4 G 00 33 28.48368 -19 23 31.4664           ~ 2 0
10 SDSS J003328.64-192104.2 G 00 33 28.64448 -19 21 04.2336           ~ 2 0
11 SDSS J003329.09-192053.5 G 00 33 29.09280 -19 20 53.5524           ~ 2 0
12 SDSS J003329.28-192324.8 G 00 33 29.28679 -19 23 24.8989           ~ 1 0
13 SDSS J003329.44-192250.7 G 00 33 29.44361 -19 22 50.7874           ~ 1 0
14 SDSS J003330.04-192144.4 G 00 33 30.04248 -19 21 44.4528           ~ 2 0
15 SDSS J003330.17-191957.1 G 00 33 30.17198 -19 19 57.1794           ~ 1 0
16 SDSS J003330.26-192106.5 G 00 33 30.26616 -19 21 06.5304           ~ 2 0
17 SDSS J003330.94-192108.9 G 00 33 30.94200 -19 21 08.9208           ~ 3 0
18 SDSS J003332.26-192027.1 G 00 33 32.26944 -19 20 27.1392           ~ 2 0
19 SDSS J003332.29-192322.7 G 00 33 32.29372 -19 23 22.7731           ~ 1 0
20 SDSS J003332.66-191949.7 G 00 33 32.66544 -19 19 49.7676           ~ 2 0
21 KUV 00311-1938 BLL 00 33 34.3800569400 -19 21 33.134193864       16.6   ~ 125 0
22 SDSS J003334.50-192109.5 G 00 33 34.50360 -19 21 09.5292           ~ 2 0
23 SDSS J003335.29-191920.9 G 00 33 35.29056 -19 19 20.9280           ~ 2 0
24 SDSS J003336.68-192313.2 G 00 33 36.68312 -19 23 13.1929           ~ 1 0
25 SDSS J003337.87-191847.7 G 00 33 37.87440 -19 18 47.7072           ~ 2 0
26 SDSS J003338.01-192226.0 G 00 33 38.01072 -19 22 26.0760           ~ 2 0
27 SDSS J003338.17-192332.4 G 00 33 38.17632 -19 23 32.4348           ~ 2 0
28 SDSS J003339.60-192137.7 G 00 33 39.60336 -19 21 37.7892           ~ 3 0
29 SDSS J003339.68-191952.9 G 00 33 39.68208 -19 19 52.9104           ~ 2 0
30 SDSS J003340.19-192238.6 G 00 33 40.19358 -19 22 38.7217           ~ 1 0
31 SDSS J003340.28-191849.8 G 00 33 40.28088 -19 18 49.8276           ~ 2 0
32 SDSS J003340.29-192058.0 G 00 33 40.29624 -19 20 58.0092           ~ 2 0
33 SDSS J003340.92-192056.4 G 00 33 40.92360 -19 20 56.4324           ~ 2 0
34 SDSS J003340.97-191840.0 G 00 33 40.97088 -19 18 40.0680           ~ 2 0
35 SDSS J003341.33-192011.8 G 00 33 41.33352 -19 20 11.8824           ~ 2 0
36 SDSS J003342.77-192144.8 G 00 33 42.77664 -19 21 44.8560           ~ 2 0
37 SDSS J003343.00-192016.0 G 00 33 43.00896 -19 20 16.0224           ~ 2 0
38 SDSS J003343.68-192104.5 G 00 33 43.68528 -19 21 04.5540           ~ 2 0
39 SDSS J003344.09-192022.3 G 00 33 44.09376 -19 20 22.3512           ~ 2 0
40 SDSS J003348.10-192130.6 G 00 33 48.10731 -19 21 30.6107           ~ 1 0
41 SDSS J011153.24+224259.4 G 01 11 53.24368 +22 42 59.4849           ~ 1 0
42 SDSS J011155.63+224747.2 G 01 11 55.62869 +22 47 47.2404           ~ 1 0
43 SDSS J011155.98+224246.5 G 01 11 55.98057 +22 42 46.5290           ~ 1 0
44 SDSS J011157.32+224502.7 G 01 11 57.32478 +22 45 02.7808           ~ 1 0
45 SDSS J011157.53+224715.2 G 01 11 57.53866 +22 47 15.2262           ~ 1 0
46 SDSS J011158.11+224710.8 G 01 11 58.11976 +22 47 10.8876           ~ 1 0
47 SDSS J011158.91+224154.3 G 01 11 58.91796 +22 41 54.3671           ~ 1 0
48 SDSS J011158.96+224455.4 G 01 11 58.96774 +22 44 55.4032           ~ 1 0
49 SDSS J011159.18+224605.5 G 01 11 59.18371 +22 46 05.5326           ~ 1 0
50 SDSS J011159.48+224538.6 G 01 11 59.48717 +22 45 38.6147           ~ 1 0
51 SDSS J011200.36+224226.9 G 01 12 00.36787 +22 42 26.9812           ~ 1 0
52 SDSS J011200.88+224202.3 G 01 12 00.88712 +22 42 02.3396           ~ 1 0
53 SDSS J011201.35+224458.1 G 01 12 01.35339 +22 44 58.1293           ~ 1 0
54 SDSS J011202.20+224705.9 G 01 12 02.20778 +22 47 05.9686           ~ 1 0
55 SDSS J011203.47+224504.6 G 01 12 03.47543 +22 45 04.6149           ~ 1 0
56 SDSS J011203.80+224500.7 G 01 12 03.80089 +22 45 00.7211           ~ 1 0
57 SDSS J011204.10+224533.6 G 01 12 04.10883 +22 45 33.6088           ~ 1 0
58 SDSS J011205.66+224514.2 G 01 12 05.66361 +22 45 14.2292           ~ 1 0
59 QSO B0109+224 BLL 01 12 05.8247044608 +22 44 38.785880796   16.00 15.66 15.47   ~ 373 2
60 2MASS J01120590+2244529 G 01 12 05.9166276816 +22 44 53.051055108           ~ 2 0
61 SDSS J011206.18+224445.5 G 01 12 06.18516 +22 44 45.5003           ~ 1 0
62 SDSS J011206.47+224633.2 G 01 12 06.47338 +22 46 33.2458           ~ 1 0
63 SDSS J011206.49+224428.0 G 01 12 06.49580 +22 44 28.0699           ~ 1 0
64 SDSS J011207.28+224456.5 G 01 12 07.27968 +22 44 56.5224           ~ 1 0
65 SDSS J011207.47+224656.1 G 01 12 07.47678 +22 46 56.1112           ~ 1 0
66 SDSS J011209.00+224450.5 G 01 12 09.00634 +22 44 50.5520           ~ 1 0
67 SDSS J011210.57+224359.7 G 01 12 10.57665 +22 43 59.7085           ~ 1 0
68 SDSS J011210.96+224528.5 G 01 12 10.96488 +22 45 28.5034           ~ 1 0
69 SDSS J011211.37+224423.8 G 01 12 11.37764 +22 44 23.8443           ~ 1 0
70 SDSS J011212.71+224623.5 G 01 12 12.71116 +22 46 23.6268           ~ 1 0
71 SDSS J011212.77+224446.5 G 01 12 12.77804 +22 44 46.5682           ~ 1 0
72 SDSS J011213.02+224508.4 G 01 12 13.02144 +22 45 08.4362           ~ 1 0
73 SDSS J011213.99+224449.6 G 01 12 13.99880 +22 44 49.6902           ~ 1 0
74 SDSS J011214.33+224656.7 G 01 12 14.33767 +22 46 56.7429           ~ 1 0
75 SDSS J011215.93+224456.3 G 01 12 15.93398 +22 44 56.2831           ~ 1 0
76 SDSS J011216.33+224545.8 G 01 12 16.33824 +22 45 45.8152           ~ 1 0
77 SDSS J011216.61+224422.6 G 01 12 16.61245 +22 44 22.6653           ~ 1 0
78 SDSS J011216.95+224551.9 G 01 12 16.94453 +22 45 51.8815           ~ 1 0
79 SDSS J011217.49+224623.1 G 01 12 17.50076 +22 46 23.1230           ~ 1 0
80 3C 66A BLL 02 22 39.6114771888 +43 02 07.799534304   15.71 15.21 14.5   ~ 942 2
81 PKS J0449-4350 BLL 04 49 24.6981911928 -43 50 08.960970948 14.95 17.52 15.24 16.27   ~ 190 1
82 BD+52 913 WD* 05 05 30.6180977592 +52 49 51.919301604 10.25 11.44 11.69 11.93 12.108 DA.8 1153 0
83 PMN J0509+0541 BLL 05 09 25.9644373872 +05 41 35.333820420 15.32 14.95 14.78 15.12   ~ 589 2
84 HD 289002 * 06 45 13.3725491952 +02 08 14.685250596 10.06 10.62 10.44     B1 277 0
85 8C 0716+714 BLL 07 21 53.4482942664 +71 20 36.363846516   15.5 15.50 14.27   ~ 1388 1
86 PG 1424+240 BLL 14 27 00.3917926224 +23 48 00.037510776 14.52 14.34 14.95 14.5   ~ 420 1
87 PG 1553+113 BLL 15 55 43.0440048528 +11 11 24.365649948 14.91 14.72 14.57 13.99   ~ 672 1
88 CD-44 12736 PM* 18 36 25.9502475648 -44 18 36.907592904   10.83 10.22     G0 222 0
89 PKS J2158-3013 BLL 21 58 52.0652249880 -30 13 32.118447792   13.36 13.09 12.62   ~ 1829 1
90 NVSS J224354+202103 BLL 22 43 54.7436079792 +20 21 03.775386276       16.1   ~ 116 1
91 QSO B2356-309 BLL 23 59 07.9034996184 -30 37 40.671098544   18.414 16.44 16.795   ~ 318 2

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