2021MNRAS.501..419S

Query : 2021MNRAS.501..419S

2021MNRAS.501..419S - Mon. Not. R. Astron. Soc., 501, 419-439 (2021/February-2)

Low-redshift quasars in the SDSS Stripe 82 - II. Associated companion galaxies and signature of star formation.

STONE M.B., BETTONI D., FALOMO R., KOTILAINEN J.K., KARHUNEN K., PAIANO S. and SCARPA R.

Abstract (from CDS):

We present optical spectroscopy of the close companions of 22 low-redshift (z < 0.5) quasars (QSO) selected from a larger sample of QSO in the SDSS Stripe82 region for which both the host galaxy and the large-scale environments have been investigated in our previous work. The new observations extend the number of QSO studied in our previous paper on close companion galaxies of 12 quasars. Our analysis here covers all 34 quasars from both this work and the previously published paper. We find that half of them (15 QSO; ∼44 per cent) have at least one associated galaxy. Many (12 galaxies; ∼67 per cent) of the associated companions exhibit [O II] 3727 Å emission line as signature of recent star formation. The star formation rate (SFR) of these galaxies is modest (median SFR ∼ 4.3 M☉ yr–1). For eight QSO, we are also able to detect the starlight of the host galaxy from which three have a typical spectrum of a post-starburst galaxy. Our results suggest that quasars do not have a strong influence on the star formation of their companion galaxies.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): galaxies: active - galaxies: evolution - galaxies: nuclei - quasars: general - galaxies: interactions - galaxies: star formation

Simbad objects: 57

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Number of rows : 57
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 J003722.69+000736.8 G 00 37 22.69872 +00 07 36.8436           ~ 1 0
2 2MASS J00372354+0008122 Sy1 00 37 23.4961269360 +00 08 12.572114748   18.98 18.62     ~ 39 0
3 SDSS J012050.27-001829.4 G 01 20 50.27208 -00 18 29.4660           ~ 1 0
4 SDSS J012050.84-001820.7 G 01 20 50.84304 -00 18 20.7288           ~ 1 0
5 2MASS J01205093-0018330 QSO 01 20 50.9403354264 -00 18 33.006598884   19.28 18.93     ~ 31 0
6 SDSS J012051.45-001831.8 G 01 20 51.45984 -00 18 31.8276           ~ 1 0
7 SDSS J021044.96-004345.3 G 02 10 44.96616 -00 43 45.3648           ~ 1 0
8 SDSS J021045.53-004326.1 G 02 10 45.53808 -00 43 26.1552           ~ 1 0
9 2SLAQ J021046.47-004327.1 Sy1 02 10 46.4751118392 -00 43 27.120785700   19.37 19.24     ~ 26 0
10 SDSS J021047.96-004330.4 G 02 10 47.96568 -00 43 30.4212           ~ 1 0
11 SDSS J021049.04-004250.5 G 02 10 49.04184 -00 42 50.5944           ~ 1 0
12 SDSS J024206.17+000037.6 G 02 42 06.17400 +00 00 37.6956           ~ 1 0
13 SDSS J024207.12+000024.6 G 02 42 07.12872 +00 00 24.6888           ~ 1 0
14 [VV2000] J024207.2+000038 QSO 02 42 07.2803021760 +00 00 38.708722764   19.98 19.67     ~ 34 0
15 2MASS J03074597+0008336 QSO 03 07 45.9576570480 +00 08 33.410479020   19.99 19.61     ~ 27 0
16 SDSS J030747.00+000835.9 G 03 07 47.00520 +00 08 35.9232           ~ 1 0
17 2MASS J03082585+0030543 QSO 03 08 25.8539338800 +00 30 54.347610060   19.76 19.28     ~ 23 0
18 SDSS J030826.22+003044.0 G 03 08 26.22048 +00 30 44.0892           ~ 1 0
19 SDSS J031033.54-004920.9 G 03 10 33.54288 -00 49 20.9460           ~ 1 0
20 SDSS J031038.98-004845.6 G 03 10 38.98728 -00 48 45.6048           ~ 1 0
21 2SLAQ J031039.34-004843.4 Sy1 03 10 39.3463421232 -00 48 43.478716932   20.78 20.46     ~ 18 0
22 SDSS J032024.98+004418.0 QSO 03 20 24.9867761256 +00 44 18.027305484   19.90 19.58     ~ 23 0
23 SDSS J032025.59+004421.3 G 03 20 25.59144 +00 44 21.3360           ~ 1 0
24 SDSS J032233.22+002209.4 G 03 22 33.22296 +00 22 09.4800           ~ 1 0
25 SDSS J032233.35+002208.0 G 03 22 33.35808 +00 22 08.0796           ~ 1 0
26 2SLAQ J032234.07+002149.9 Sy1 03 22 34.0802570232 +00 21 50.041099620   19.54 19.18     ~ 25 0
27 SDSS J032835.24-000409.2 G 03 28 35.24736 -00 04 09.2892           ~ 1 0
28 SDSS J032837.52-000337.8 G 03 28 37.52112 -00 03 37.8072           ~ 1 0
29 SDSS J032838.27-000341.6 Sy1 03 28 38.2850918568 -00 03 41.673192876   20.17 19.54     ~ 15 0
30 SDSS J032839.46-000348.1 G 03 28 39.46272 -00 03 48.1320           ~ 1 0
31 2MASS J03315688+0026052 QSO 03 31 56.8804198704 +00 26 05.238962844   19.58 18.88     ~ 19 0
32 SDSS J033157.44+002604.7 G 03 31 57.44472 +00 26 04.7904           ~ 1 0
33 SDSS J033305.84+005743.1 G 03 33 05.84 +00 57 43.1           ~ 1 0
34 [VV2003c] J033306.0+005736 Sy1 03 33 05.9691171816 +00 57 35.914869936   19.56 19.24     ~ 23 0
35 SDSS J033306.97+005649.4 G 03 33 06.97272 +00 56 49.4304           ~ 1 0
36 SDSS J033431.31+005121.5 QSO 03 34 31.312 +00 51 21.53   20.86 20.44     ~ 13 0
37 SDSS J033431.61+005119.9 G 03 34 31.61280 +00 51 19.9404           ~ 1 0
38 SDSS J033625.24+000318.1 G 03 36 25.24104 +00 03 18.1836           ~ 1 0
39 SDSS J033627.24+000434.8 G 03 36 27.24960 +00 04 34.8132           ~ 1 0
40 SDSS J033627.43+000442.9 QSO 03 36 27.4315533504 +00 04 42.958724808   20.51 20.16     ~ 16 0
41 3XMM J033718.8+003303 Sy1 03 37 18.8144976264 +00 33 03.815056260   20.58 19.94 19.04   ~ 23 0
42 SDSS J033719.23+003242.8 G 03 37 19.23984 +00 32 42.8316           ~ 1 0
43 SDSS J033851.00+001828.3 G 03 38 51.00264 +00 18 28.3356           ~ 1 0
44 2SLAQ J033852.90+001904.7 Sy1 03 38 52.9094559048 +00 19 04.736700660   20.24 19.91 19.35   ~ 29 0
45 SDSS J033938.12-003624.1 G 03 39 38.12184 -00 36 24.1380           ~ 1 0
46 SDSS J033938.59-003625.6 QSO 03 39 38.6032320120 -00 36 25.679642544   19.72 19.56     ~ 17 0
47 SDSS J034226.29-000433.5 G 03 42 26.29704 -00 04 33.5748           ~ 1 0
48 [VV96] J034226.4-000427 QSO 03 42 26.5043592840 -00 04 27.109342668   17.78 17.65     ~ 35 0
49 SDSS J211348.20+003717.6 G 21 13 48.20 +00 37 17.6           ~ 1 0
50 [VV2006] J211348.4+003721 QSO 21 13 48.3963328320 +00 37 22.085965704   18.43 18.17     ~ 27 0
51 SDSS J215825.34-001753.1 G 21 58 25.33992 -00 17 53.1456           ~ 1 0
52 SDSS J215825.79-001756.8 G 21 58 25.79184 -00 17 56.8896           ~ 1 0
53 2MASS J21582589-0018046 QSO 21 58 25.8880696440 -00 18 04.773689568   18.81 18.25     ~ 25 0
54 2MASS J22290981+0025273 QSO 22 29 09.8186024832 +00 25 27.378257232   19.21 18.67     ~ 29 0
55 SDSS J222910.69+002536.7 G 22 29 10.69080 +00 25 36.7032           ~ 1 0
56 SDSS J235925.64-004747.4 G 23 59 25.64784 -00 47 47.4072           ~ 1 0
57 SDSS J235926.25-004750.3 QSO 23 59 26.2599567768 -00 47 50.457687648   19.68 19.49     ~ 18 0

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