2017A&A...608A..84C


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.24CEST17:03:32

2017A&A...608A..84C - Astronomy and Astrophysics, volume 608A, 84-84 (2017/12-1)

Solving the conundrum of intervening strong Mg II absorbers towards gamma-ray bursts and quasars.

CHRISTENSEN L., VERGANI S.D., SCHULZE S., ANNAU N., SELSING J., FYNBO J.P.U., DE UGARTE POSTIGO A., CANAMERAS R., LOPEZ S., PASSI D., CORTES-ZULETA P., ELLISON S.L., D'ODORICO V., BECKER G., BERG T.A.M., CANO Z., COVINO S., CUPANI G., D'ELIA V., GOLDONI P., GOMBOC A., HAMMER F., HEINTZ K.E., JAKOBSSON P., JAPELJ J., KAPER L., MALESANI D., MOLLER P., PETITJEAN P., PUGLIESE V., SANCHEZ-RAMIREZ R., TANVIR N.R., THONE C.C., VESTERGAARD M., WIERSEMA K. and WORSECK G.

Abstract (from CDS):

Previous studies have shown that the incidence rate of intervening strong MgII absorbers towards gamma-ray bursts (GRBs) were a factor of 2-4 higher than towards quasars. Exploring the similar sized and uniformly selected legacy data sets XQ-100 and XSGRB, each consisting of 100 quasar and 81 GRB afterglow spectra obtained with a single instrument (VLT/X-shooter), we demonstrate that there is no disagreement in the number density of strong MgII absorbers with rest-frame equivalent widths Wr(lambda2796)>1Å towardsGRBs and quasars in the redshift range 0.1≤z≤5. With large and similar sample sizes, and path length coverages of Δz=57.8 and 254.4 for GRBs and quasars, respectively, the incidences of intervening absorbers are consistent within 1σ uncertainty levels at all redshifts. For absorbers at z<2.3, the incidence towards GRBs is a factor of 1.5±0.4 higher than the expected number of strong MgII absorbers in Sloan Digital Sky Survey (SDSS) quasar spectra, while for quasar absorbers observed with X-shooter we find an excess factor of 1.4±0.2 relative to SDSS quasars. Conversely, the incidence rates agree at all redshifts with reported high-spectral-resolution quasar data, and no excess is found. The only remaining discrepancy in incidences is between SDSS MgII catalogues and high-spectral-resolution studies. The rest-frame equivalent-width distribution also agrees to within 1σ uncertainty levels between the GRB and quasar samples. Intervening strong MgII absorbers towards GRBs are therefore neither unusually frequent, nor unusually strong.

Abstract Copyright: © ESO, 2017

Journal keyword(s): quasars: absorption lines - gamma rays: general - galaxies: halos - galaxies: halos

CDS comments: Table A.1 Some QSO not identified.

Simbad objects: 87

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Number of rows : 87

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 QSO J0003-2603 QSO 00 03 22.9530051057 -26 03 18.306624161   18 17.53     ~ 272 0
2 QSO J0006-6208 QSO 00 06 51.6232856306 -62 08 03.564217543     18.29     ~ 33 0
3 QSO B0032+1622 QSO 00 34 54.5993545024 +16 39 20.650878418   21.1 19.50 18.7   ~ 19 0
4 [VV2006] J004219.8-102009 QSO 00 42 19.7442684601 -10 20 09.577908451   20.57 19.53     ~ 25 0
5 QSO J0056-2808 QSO 00 56 25.0850046677 -28 08 32.248133313     18.24     ~ 48 0
6 QSO J0100-2708 QSO 01 00 12.3133422248 -27 08 53.091098760   18.74 17.80     ~ 13 0
7 QSO B0111-2819 QSO 01 13 44.3844423447 -28 03 17.399452337     18.67     ~ 12 0
8 QSO J0117+1552 QSO 01 17 31.072 +15 52 17.08     18.60     ~ 11 0
9 QSO J0124+0044 QSO 01 24 03.7793269746 +00 44 32.738646875   19.71 18.71 17.9   ~ 75 0
10 QSO B0135-42 QSO 01 37 24.3935965764 -42 24 17.151380568     18.46     ~ 19 0
11 GRB 100901A gB 01 49 03.56 +22 45 30.6           ~ 128 0
12 QSO B0151-00 QSO 01 53 39.6071118243 -00 11 04.933992769   21.73 20.12     ~ 56 0
13 [VV2006] J021120.1+110717 QSO 02 11 20.0372581442 +11 07 16.623725306     18.12     ~ 9 0
14 QSO J0234-1806 QSO 02 34 55.157 -18 06 08.72     18.79     ~ 18 0
15 QSO B0241-01 QSO 02 44 01.8452933307 -01 34 03.855954588     18.20     ~ 43 0
16 QSO B0245-0608 QSO 02 47 56.571 -05 55 58.81     18.60     ~ 17 0
17 QSO J0255+0048 QSO 02 55 18.5794225645 +00 48 47.544465435   21.15 20.00     ~ 63 0
18 QSO J0307-4945 QSO 03 07 22.8945699535 -49 45 48.278442708     18.76     ~ 52 0
19 QSO J0311-1722 QSO 03 11 15.2110859734 -17 22 47.673266262     17.73     ~ 25 0
20 GRB 111008A gB 04 01 48.220 -32 42 34.09           ~ 83 0
21 GRB 121027A gB 04 14 23.450 -58 49 47.17           ~ 99 0
22 QSO J0415-4357 QSO 04 15 15.1801453751 -43 57 52.943584722     18.81     ~ 13 0
23 GRB 121024A gB 04 41 53.30 -12 17 26.0           ~ 87 0
24 [VV2006] J052915.9-352604 QSO 05 29 15.9123983249 -35 26 03.543073520     18.94     ~ 9 0
25 QSO J0747+2739 QSO 07 47 11.1475926883 +27 39 03.365274417     17.20     ~ 53 0
26 GRB 120119A gB 08 00 06.940 -09 04 53.83           ~ 121 0
27 SDSS J081855.78+095848.0 QSO 08 18 55.7830570576 +09 58 47.993991122   19.71 18.81     ~ 27 0
28 [VV2006] J083322.5+095940 QSO 08 33 22.4990523209 +09 59 41.196183585   20.33 19.59     ~ 24 0
29 [VV2006] J083510.9+065053 QSO 08 35 10.9212696916 +06 50 52.827381612   20.40 19.43     ~ 24 0
30 GRB 111107A gB 08 37 54.66 -66 31 12.3           ~ 62 0
31 [VV2006] J083941.4+031816 QSO 08 39 41.4497045576 +03 18 17.091041302   21.62 20.10     ~ 24 0
32 GRB 130408A gB 08 57 37.30 -32 21 38.9           ~ 59 0
33 [VV2006] J092041.7+072543 QSO 09 20 41.7627960961 +07 25 44.044837896   20.01 19.28     ~ 26 0
34 QSO J0935+0022 QSO 09 35 56.9188840206 +00 22 55.693234758   20.26 19.37     ~ 31 0
35 [VV2006] J093714.5+082858 QSO 09 37 14.4846978617 +08 28 58.545057346   20.50 19.61     ~ 29 0
36 GRB 141109A gB 09 38 07.40 -00 36 28.6           ~ 40 0
37 QSO B0952-0115 QSO 09 55 00.1037541106 -01 30 06.549307797     18.7     ~ 131 0
38 [VV2006] J095937.2+131215 QSO 09 59 37.1142388317 +13 12 15.460680801   19.65 18.55     ~ 32 0
39 GRB 100219A gB 10 16 48.46 -12 34 00.2           ~ 93 0
40 QSO J1020+0922 QSO 10 20 40.6225549498 +09 22 54.244921673   19.94 19.20     ~ 33 0
41 [VV2006] J103221.1+092749 QSO 10 32 21.1156344563 +09 27 49.006972158   20.72 19.75     ~ 24 0
42 [VV2006] J103446.5+110214 QSO 10 34 46.5348281976 +11 02 14.590067514   21.08 20.01     ~ 24 0
43 SDSS J104234.00+195718.6 QSO 10 42 34.0100257404 +19 57 18.620403200   19.80 19.07     ~ 13 0
44 GRB 160203A gB 10 47 48.31 -24 47 20.5           ~ 27 0
45 GRB 100316B gB 10 54 00 -45 28.0           ~ 44 0
46 [VV2006] J105434.2+021551 QSO 10 54 34.1755707761 +02 15 52.017400447   20.83 19.68     ~ 23 0
47 SDSS J105705.37+191042.8 QSO 10 57 05.3729823074 +19 10 42.837121943   20.93 19.74     ~ 18 0
48 PSS J1058+1245 QSO 10 58 58.3799636949 +12 45 54.958204541     18.00     ~ 15 0
49 [VV2006] J110352.7+100402 QSO 11 03 52.7449730721 +10 04 03.164035148   20.45 19.58     ~ 27 0
50 SDSS J110855.46+120953.3 QSO 11 08 55.4652783132 +12 09 53.340702501   20.81 19.72     ~ 34 0
51 QSO J1110+0244 QSO 11 10 08.6144483463 +02 44 58.127460337   20.05 19.05     ~ 25 0
52 QSO B1108-07 QSO 11 11 13.600 -08 04 02.00     18.10     ~ 61 0
53 GRB 120712A gB 11 18 21.21 -20 02 01.9           ~ 48 0
54 QSO B1159+123 QSO 12 01 47.9113685833 +12 06 30.254501010   18.85 18.16     ~ 88 0
55 [VV2006] J120210.1-005425 QSO 12 02 10.0835584882 -00 54 25.562085917   20.44 19.60     ~ 28 0
56 GRB 121229A gB 12 40 23.41 -50 35 37.2           ~ 40 0
57 QSO J1249-0159 QSO 12 49 57.2387444582 -01 59 28.776474497   18.93 18.19     ~ 41 0
58 [VV2006] J130452.6+023924 QSO 13 04 52.5787263236 +02 39 24.960853771   19.86 19.02     ~ 29 0
59 SDSS J131242.86+084105.0 QSO 13 12 42.8682939572 +08 41 05.097113186   20.27 19.42     ~ 22 0
60 GRB 090313 gB 13 13 36.00 +08 05 10.7           ~ 119 0
61 QSO B1317-0507 QSO 13 20 29.9692569958 -05 23 35.373225700   18.1 16.54     ~ 25 0
62 SDSS J132346.05+140517.5 QSO 13 23 46.0563018824 +14 05 17.589132067   20.85 19.90     ~ 15 0
63 QSO J1330-2522 QSO 13 30 51.9940139513 -25 22 19.035618087     18.46     ~ 13 0
64 SDSS J133150.69+101529.4 QSO 13 31 50.6969026646 +10 15 29.499362173   20.46 19.55     ~ 13 0
65 SDSS J135247.97+130311.5 QSO 13 52 47.9807528659 +13 03 11.578579872   19.73 19.02     ~ 15 0
66 SDSS J141608.38+181144.0 QSO 14 16 08.3890775126 +18 11 44.044685804   20.47 19.67     ~ 13 0
67 2MASS J14425011+0920015 QSO 14 42 50.1218911762 +09 20 01.533508743   18.73 18.14     ~ 25 0
68 2MASS J15243606+2123092 QSO 15 24 36.0830438586 +21 23 09.151894315   19.30 18.58     ~ 16 0
69 GRB 140614A gB 15 24 40.69 -79 07 43.8           ~ 26 0
70 SDSS J154237.71+095558.8 QSO 15 42 37.7099930735 +09 55 58.887419545   21.01 19.93     ~ 14 0
71 GRB 060418 gB 15 45 42.600 -03 38 20.00 15.73 16.19 14.98     ~ 324 1
72 SDSS J155255.04+100538.3 QSO 15 52 55.0448235765 +10 05 38.285500411   20.64 19.75     ~ 13 0
73 QSO B1618-0035 QSO 16 21 16.9225064465 -00 42 50.911354748   18.92 17.97     ~ 60 0
74 QSO J1633+1411 QSO 16 33 19.6288689974 +14 11 42.107931343   21.64 20.28     ~ 33 0
75 GRB 130606A gB 16 37 35.12 +29 47 46.4           ~ 117 0
76 QSO J1723+2243 QSO 17 23 23.1074963445 +22 43 57.141061166     18.17     ~ 29 0
77 GRB 120815A gB 18 15 54.40 -52 07 29.0           ~ 67 0
78 GRB 161023A gB 20 44 05.20 -47 39 48.5           ~ 27 0
79 GRB 150403A gB 20 46 01.17 -62 42 40.4           ~ 51 0
80 GRB 141028A gB 21 30 24.48 -00 13 55.3           ~ 62 0
81 QSO J2215-1611 QSO 22 15 27.2919748996 -16 11 33.061213587     18.10     ~ 40 0
82 QSO J2216-6714 QSO 22 16 52.0185004217 -67 14 43.653689861     18.06     ~ 16 0
83 GRB 151021A gB 22 30 34.43 -33 11 50.3           ~ 35 0
84 QSO B2248-1244 QSO 22 51 18.1054880880 -12 27 03.310799417     18.5     ~ 21 0
85 GRB 131030A gB 23 00 16.14 -05 22 05.2           ~ 79 0
86 QSO J2344+0342 QSO 23 44 03.109 +03 42 26.73     18.20     ~ 37 0
87 QSO J2349-3712 QSO 23 49 13.7828773886 -37 12 59.303887029     18.69     ~ 15 0

    Equat.    Gal    SGal    Ecl

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2020.10.24-17:03:32

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