A NEW MICROLENSING EVENT IN THE DOUBLY IMAGED QUASAR Q 0957+561

被引：25

作者：

Hainline, Laura J. ^{[1
]}

Morgan, Christopher W. ^{[1
]}

Beach, Joseph N. ^{[1
]}

Kochanek, C. S. ^{[2
]}

Harris, Hugh C. ^{[3
]}

Tilleman, Trudy ^{[3
]}

Fadely, Ross ^{[4
]}

Falco, Emilio E. ^{[5
]}

Le, Truong X. ^{[1
]}

机构：

[1] USN Acad, Dept Phys, Annapolis, MD 21402 USA

[2] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA

[3] US Naval Observ, Flagstaff Stn, Flagstaff, AZ 86001 USA

[4] Haverford Coll, Dept Astron, Haverford, PA 19041 USA

[5] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

来源：

ASTROPHYSICAL JOURNAL | 2012年 / 744卷 / 02期

基金：

美国国家科学基金会;

关键词：

accretion; accretion disks; gravitational lensing: micro; gravitational lensing: strong; quasars: individual (Q0957+561); GRAVITATIONAL LENS 0957+561; TIME-DELAY; ACCRETION DISK; LIGHT CURVES; X-RAY; EMISSION REGIONS; MASS FUNCTION; PG 1115+080; Q0957+561; QSO-0957+561;

D O I：

10.1088/0004-637X/744/2/104

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present evidence for ultraviolet/optical microlensing in the gravitationally lensed quasar Q 0957+561. We combine new measurements from our optical monitoring campaign at the United States Naval Observatory, Flagstaff, with measurements from the literature and find that the time-delay-corrected r-band flux ratio m(A) - m(B) has increased by similar to 0.1 mag over a period of five years beginning in the fall of 2005. We apply our Monte Carlo microlensing analysis procedure to the composite light curves, obtaining a measurement of the optical accretion disk size, log{(r(s)/cm)[ cos(i)/0.5](1/2)} = 16.2 +/- 0.5, that is consistent with the quasar accretion disk size-black hole mass relation.

引用

页数：9

共 50 条

[41] Spectroscopy and polarimetry of the gravitationally lensed quasar Q0957+561
Popovic, L. C.
Afanasiev, V. L.
Shablovinskaya, E. S.
Ardilanov, V. I.
Savic, Dj.
ASTRONOMY & ASTROPHYSICS, 2021, 647
[42] Revealing the structure of the lensed quasar Q 0957+561 II. Supermassive black hole mass via gravitational redshift
Fian, C.
Mediavilla, E.
Jimenez-Vicente, J.
Motta, V
Munoz, J. A.
Chelouche, D.
Hanslmeier, A.
ASTRONOMY & ASTROPHYSICS, 2022, 667
[43] Rapid brightness fluctuations in Q0957+561A,B: Microlensing or seeing?
Colley, WN
Shapiro, II
Pegg, J
Turner, EL
Kundic, T
Loomis, K
Hastings, NC
McMillan, R
ASTROPHYSICAL JOURNAL, 2003, 588 (02): : 711 - 715
[44] Revealing the non-linear behaviour of the lensed quasar Q0957+561
Bewketu Belete, A.
Canto Martins, B. L.
Leao, I. C.
De Medeiros, J. R.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2019, 484 (03) : 3552 - 3560
[45] Multi-wave Monitoring of the Gravitational Lensed Quasar Q0957+561
Shalyapin, Vyacheslav N.
Goicoechea, Luis J.
Gil-Merino, Rodrigo
NEW HORIZONS IN TIME-DOMAIN ASTRONOMY, 2012, (285): : 406 - 407
[46] Ultraviolet spectral variability and the Lyα forest in the lensed quasar Q0957+561
Dolan, JF
Michalitsianos, AG
Nguyen, QT
Hill, RJ
ASTROPHYSICAL JOURNAL, 2000, 539 (01): : 111 - 123
[47] Around the clock observations of the Q0957+561A,B gravitationally lensed quasar
Colley, WN
Schild, RE
Abajas, C
Alcalde, D
Aslan, Z
Barrena, R
Dudinov, V
Khamitov, I
Kjernsmo, K
Lee, HJ
Lee, J
Lee, MG
Licandro, J
Maoz, D
Mediavilla, E
Motta, V
Muñoz, J
Oscoz, A
Serra-Ricart, M
Sinelnikov, I
Stabell, R
Teuber, J
Zheleznyak, A
ASTROPHYSICAL JOURNAL, 2002, 565 (01): : 105 - 107
[48] AN ESTIMATE OF THE HUBBLE CONSTANT FROM THE GRAVITATIONAL LENSING OF QUASAR Q0957+561
RHEE, G
NATURE, 1991, 350 (6315) : 211 - 212
[49] Accretion disk structure and orientation in the lensed and microlensed Q0957+561 quasar
Schild, RE
ASTRONOMICAL JOURNAL, 2005, 129 (03): : 1225 - 1230
[50] Photometric monitoring of the doubly imaged quasar UM 673: possible evidence for chromatic microlensing
Nakos, T
Courbin, F
Poels, J
Libbrecht, C
Magain, P
Surdej, J
Manfroid, J
Burud, I
Hjorth, J
Germany, L
Lidman, C
Meylan, G
Pompei, E
Pritchard, J
Saviane, I
ASTRONOMY & ASTROPHYSICS, 2005, 441 (02) : 443 - 450

← 1 2 3 4 5 →