2018ApJ...869..142D


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.21CEST16:12:17

2018ApJ...869..142D - Astrophys. J., 869, 142-142 (2018/December-3)

Monitoring AGNs with Hβ Asymmetry. I. First results: velocity-resolved reverberation mapping.

DU P., BROTHERTON M.S., WANG K., HUANG Z.-P., HU C., KASPER D.H., CHICK W.T., NGUYEN M.L., MAITHIL J., HAND D., LI Y.-R., HO L.C., BAI J.-M., BIAN W.-H., WANG J.-M. (The MAHA Collaboration)

Abstract (from CDS):

We have started a long-term reverberation mapping (RM) project using the Wyoming Infrared Observatory 2.3 m telescope titled "Monitoring AGNs with Hβ Asymmetry" (MAHA). The motivations of the project are to explore the geometry and kinematics of the gas responsible for complex Hβ emission-line profiles, ideally leading to an understanding of the structures and origins of the broad-line region (BLR). Furthermore, such a project provides the opportunity to search for evidence of close binary supermassive black holes. We describe MAHA and report initial results from our first campaign, from 2016 December to 2017 May, highlighting velocity-resolved time lags for four active galactic nuclei (AGNs) with asymmetric Hβ lines. We find that 3C 120, Ark 120, and Mrk 6 display complex features different from the simple signatures expected for pure outflow, inflow, or a Keplerian disk. While three of the objects have been previously reverberation mapped, including velocity-resolved time lags in the cases of 3C 120 and Mrk 6, we report a time lag and corresponding black hole mass measurement for SBS 1518+593 for the first time. Furthermore, SBS 1518+593, the least asymmetric of the four, does show velocity-resolved time lags characteristic of a Keplerian disk or virialized motion more generally. Also, the velocity-resolved time lags of 3C 120 have significantly changed since previously observed, indicating an evolution of its BLR structure. Future analyses of the data for these objects and others in MAHA will explore the full diversity of Hβ lines and the physics of AGN BLRs.

Abstract Copyright: © 2018. The American Astronomical Society.

Journal keyword(s): galaxies: active - galaxies: nuclei - quasars: supermassive black holes

VizieR on-line data: <Available at CDS (J/ApJ/869/142): table1.dat table3.dat table6.dat>

Simbad objects: 33

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Number of rows : 33

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 Mrk 1501 Sy1 00 10 31.0058529490 +10 58 29.505989476   15.96 15.40 12.22   ~ 648 0
2 Mrk 1148 Sy1 00 51 54.7635184923 +17 25 58.507740633   16.44 15.96     ~ 127 0
3 6dFGS gJ015530.0-085704 Sy1 01 55 30.0258117157 -08 57 04.129972505   17.26 17.02 16.89   ~ 52 0
4 NGC 985 Sy1 02 34 37.882 -08 47 17.02   14.64 14.28 12.9   ~ 348 0
5 PHL 1412 QSO 02 39 22.8656 -00 01 19.696   15.78 15.48 15.97   ~ 36 0
6 Mrk 1506 Sy1 04 33 11.0958197353 +05 21 15.617543663   15.72 15.05 10.08   ~ 1855 2
7 BD+52 913 WD* 05 05 30.6182785658 +52 49 51.920797126 10.25 11.44 11.69 11.93 12.108 DA.8 992 0
8 Mrk 1095 Sy1 05 16 11.4093760763 -00 08 59.158774578   14.30 13.92     ~ 787 1
9 IC 450 Sy1 06 52 12.32333 +74 25 37.2376   15.16 14.19     ~ 506 1
10 NGC 2617 Sy1 08 35 38.7980637155 -04 05 17.902881609   13.6   12.63 13.2 ~ 123 0
11 QSO J0936+5331 QSO 09 36 53.8423536577 +53 31 26.795717145   17.52 17.22     ~ 32 0
12 2MASS J09460395+0139235 Sy1 09 46 03.9474047845 +01 39 23.760906484   18.10 17.62     ~ 33 0
13 2MASX J09504838+3926503 Sy1 09 50 48.3802745374 +39 26 50.463708894   16.83 16.73     ~ 172 0
14 2MASX J09553983+4532173 Sy1 09 55 39.8270854453 +45 32 17.003373387   17.14 16.91 16.2   ~ 48 1
15 Mrk 715 Sy1 10 04 47.6134765816 +14 46 45.517473686   16.79 15.80     ~ 38 0
16 4C 13.41 Sy1 10 07 26.0965727406 +12 48 56.188170981   15.81 15.68     ~ 378 2
17 Feige 34 HS* 10 39 36.7377085527 +43 06 09.209752646 9.613 10.91 11.14 11.319 11.464 sdOp 609 0
18 QSO B1048+342 Sy1 10 51 43.8919513785 +33 59 26.686941538   17.11 16.79     ~ 166 0
19 7C 110025.60+771511.00 Sy1 11 04 13.8613944317 +76 58 58.192391742   15.70 15.72 15.40   ~ 510 1
20 2MASS J11534927+1128306 Sy1 11 53 49.2708498209 +11 28 30.403108852   16.87 16.71     ~ 114 0
21 2E 2584 Sy1 12 04 42.1097577213 +27 54 11.867990165   15.64 15.60     ~ 354 0
22 ICRF J130533.0-103319 Sy1 13 05 33.0149111397 -10 33 19.430590671   15.18 15.23 14.46   ~ 504 1
23 2MASX J13053451+1819328 Sy1 13 05 34.4950084977 +18 19 32.869629317   17.35 17.00     ~ 18 0
24 Ton 1565 Sy1 13 12 17.7526648504 +35 15 21.087644341   15.45 15.64 14.2   ~ 246 1
25 7C 134441.00+623541.00 BLL 13 46 17.5412134510 +62 20 45.444089933   17.42 17.09     ~ 43 1
26 2XMM J135315.8+634546 Sy1 13 53 15.8310776491 +63 45 45.682560611   14.54 14.28     ~ 359 0
27 2MASX J15192168+5908239 Sy1 15 19 21.677 +59 08 23.85   16.14 15.94     ~ 46 0
28 2MASS J15213967+0337292 Sy1 15 21 39.6660499907 +03 37 29.244576287   17.56 17.22     ~ 32 0
29 Mrk 876 Sy1 16 13 57.1791807197 +65 43 09.953889666   16.03 15.49     ~ 516 0
30 2MASX J17144854+3327381 Sy1 17 14 48.5065129250 +33 27 38.301050274   17.40 17.10     ~ 17 1
31 ICRF J184208.9+794617 Sy1 18 42 08.9910523393 +79 46 17.129210139   16.06 15.38     ~ 1218 0
32 2MAXI J2115+821 Sy1 21 14 01.1716311384 +82 04 48.338015583           ~ 107 1
33 BD+28 4211 HS* 21 51 11.0220905905 +28 51 50.366090892 8.922 10.25 10.58 10.656 10.831 sdO2VIIIHe5 738 0

    Equat.    Gal    SGal    Ecl

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2020.10.21-16:12:17

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