Systematic Errors as a Source of Mass Discrepancy in Black Hole Microlensing Event OGLE-2011-BLG-0462

被引：37

作者：

Mroz, Przemek ^{[1
]}

Udalski, Andrzej ^{[1
]}

Gould, Andrew ^{[2
,3
]}

机构：

[1] Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland

[2] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

[3] Ohio State Univ, Dept Astron, 140 W 18th Ave, Columbus, OH 43210 USA

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2022年 / 937卷 / 02期

关键词：

D O I：

10.3847/2041-8213/ac90bb

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Two independent groups reported the discovery of an isolated dark stellar remnant in the microlensing event OGLE-2011-BLG-0462 based on photometric ground-based observations coupled with astrometric measurements taken with the Hubble Space Telescope. These two analyses yielded discrepant mass measurements, with the first group reporting that the lensing object is a black hole of 7.1 +/- 1.3 M-circle dot whereas the other concluded that the microlensing event was caused by either a neutron star or a low-mass black hole (1.6-4.4 M-circle dot). Here, we scrutinize the available photometric and astrometric data and conclude that systematic errors are a cause of the discrepant measurements. We find that the lens is an isolated black hole with a mass of 7.88 +/- 0.82 M-circle dot located at a distance of 1.49 +/- 0.12 kpc. We also study the impact of blending on the accuracy of astrometric microlensing measurements. We find that low-level blending by source companions is a major, previously unrecognized, challenge to astrometric microlensing measurements of black hole masses.

引用

页数：11

共 23 条

[11] OGLE-2017-BLG-0173Lb: Low-mass-ratio Planet in a "Hollywood" Microlensing Event
Hwang, K. -H.
Udalski, A.
Shvartzvald, Y.
Ryu, Y. -H.
Albrow, M. D.
Chung, S. -J.
Gould, A.
Han, C.
Jung, Y. K.
Shin, I. -G.
Yee, J. C.
Zhu, W.
Cha, S. -M.
Kim, D. -J.
Kim, H. -W.
Kim, S. -L.
Lee, C. -U.
Lee, D. -J.
Lee, Y.
Park, B. -G.
Pogge, R. W.
Skowron, J.
Mroz, P.
Poleski, R.
Kozlowski, S.
Soszynski, I.
Pietrukowicz, P.
Szymanski, M. K.
Ulaczyk, K.
Pawlak, M.
Bryden, G.
Beichman, C.
Novati, S. Calchi
Gaudi, B. S.
Henderson, C. B.
Jacklin, S.
Penny, M. T.
ASTRONOMICAL JOURNAL, 2018, 155 (01):
[12] CONFIRMATION OF THE PLANETARY MICROLENSING SIGNAL AND STAR AND PLANET MASS DETERMINATIONS FOR EVENT OGLE-2005-BLG-169
Bennett, D. P.
Bhattacharya, A.
Anderson, J.
Bond, I. A.
Anderson, N.
Barry, R.
Batista, V.
Beaulieu, J. -P.
DePoy, D. L.
Dong, Subo
Gaudi, B. S.
Gilbert, E.
Gould, A.
Pfeifle, R.
Pogge, R. W.
Suzuki, D.
Terry, S.
Udalski, A.
ASTROPHYSICAL JOURNAL, 2015, 808 (02):
[13] Binary Source Microlensing Event OGLE-2016-BLG-0733: Interpretation of a Long-term Asymmetric Perturbation
Jung, Y. K.
Udalski, A.
Yee, J. C.
Sumi, T.
Gould, A.
Han, C.
Albrow, M. D.
Lee, C. -U.
Kim, S. -L.
Chung, S. -J.
Hwang, K. -H.
Ryu, Y. -H.
Shin, I. -G.
Zhu, W.
Cha, S. -M.
Kim, D. -J.
Lee, Y.
Park, B. -G.
Pogge, R. W.
Pietrukowicz, P.
Kozlowski, S.
Poleski, R.
Skowron, J.
Mroz, P.
Szymanski, M. K.
Soszynski, I.
Pawlak, M.
Ulaczyk, K.
Abe, F.
Bennett, D. P.
Barry, R.
Bond, I. A.
Asakura, Y.
Bhattacharya, A.
Donachie, M.
Freeman, M.
Fukui, A.
Hirao, Y.
Itow, Y.
Koshimoto, N.
Li, M. C. A.
Ling, C. H.
Masuda, K.
Matsubara, Y.
Muraki, Y.
Nagakane, M.
Oyokawa, H.
Rattenbury, N. J.
Sharan, A.
Sullivan, D. J.
ASTRONOMICAL JOURNAL, 2017, 153 (03):
[14] A Planetary Microlensing Event with an Unusually Red Source Star: MOA-2011-BLG-291
Bennett, David P.
Udalski, Andrzej
Bond, Ian A.
Suzuki, Daisuke
Ryu, Yoon-Hyun
Abe, Fumio
Barry, Richard K.
Bhattacharya, Aparna
Donachie, Martin
Fukui, Akihiko
Hirao, Yuki
Kawasaki, Kohei
Kondo, Iona
Koshimoto, Naoki
Li, Man Cheung Alex
Matsubara, Yutaka
Miyazaki, Shota
Muraki, Yasushi
Nagakane, Masayuki
Ohnishi, Koji
Ranc, Clement
Rattenbury, Nicholas J.
Suematsu, Haruno
Sumi, Takahiro
Tristram, Paul J.
Yonehara, Atsunori
Szymanski, Michal K.
Soszynski, Igor
Wyrzykowski, Lukasz
Ulaczyk, Krzysztof
Poleski, Radek
Kozlowski, Szymon
Pietrukowicz, Pawel
Skowron, Jan
Shvartzvald, Yossi
Maoz, Dan
Kaspi, Shai
Friedmann, Matan
Batista, Virginie
DePoy, Darren
Dong, Subo
Gaudi, B. Scott
Gould, Andrew
Han, Cheongho
Pogge, Richard W.
Tan, Thiam-Guan
Yee, Jennifer C.
ASTRONOMICAL JOURNAL, 2018, 156 (03):
[15] REVISITING THE MICROLENSING EVENT OGLE 2012-BLG-0026: A SOLAR MASS STAR WITH TWO COLD GIANT PLANETS
Beaulieu, J. -P.
Bennett, D. P.
Batista, V.
Fukui, A.
Marquette, J. -B.
Brillant, S.
Cole, A. A.
Rogers, L. A.
Sumi, T.
Abe, F.
Bhattacharya, A.
Koshimoto, N.
Suzuki, D.
Tristram, P. J.
Han, C.
Gould, A.
Pogge, R.
Yee, J.
ASTROPHYSICAL JOURNAL, 2016, 824 (02):
[16] Precision measurement of a brown dwarf mass in a binary system in the microlensing event OGLE-2019-BLG-0033/MOA-2019-BLG-035
Herald, A.
Udalski, A.
Bozza, V.
Rota, P.
Bond, I. A.
Yee, J. C.
Sajadian, S.
Mroz, P.
Poleski, R.
Skowron, J.
Szymanski, M. K.
Soszynski, I.
Pietrukowicz, P.
Kozlowski, S.
Ulaczyk, K.
Rybicki, K. A.
Iwanek, P.
Wrona, M.
Gromadzki, M.
Abe, F.
Barry, R.
Bennett, D. P.
Bhattacharya, A.
Fukui, A.
Fujii, H.
Hirao, Y.
Itow, Y.
Kirikawa, R.
Kondo, I.
Koshimoto, N.
Matsubara, Y.
Matsumoto, S.
Miyazaki, S.
Muraki, Y.
Olmschenk, G.
Ranc, C.
Okamura, A.
Rattenbury, N. J.
Satoh, Y.
Sumi, T.
Suzuki, D.
Silva, S. Ishitani
Toda, T.
Tristram, P. J.
Vandorou, A.
Yama, H.
Beichman, C. A.
Bryden, G.
Novati, S. Calchi
Carey, S.
ASTRONOMY & ASTROPHYSICS, 2022, 663
[17] OGLE-2016-BLG-0156: Microlensing Event with Pronounced Microlens-parallax Effects Yielding a Precise Lens Mass Measurement
Jung, Youn Kil
Han, Cheongho
Bond, Ian A.
Udalski, Andrzej
Gould, Andrew
Albrow, Michael D.
Chung, Sun-Ju
Hwang, Kyu-Ha
Lee, Chung-Uk
Ryu, Yoon-Hyun
Shin, In-Gu
Shvartzvald, Yossi
Yee, Jennifer C.
Jee, M. James
Kim, Doeon
Cha, Sang-Mok
Kim, Dong-Jin
Kim, Hyoun-Woo
Kim, Seung-Lee
Lee, Dong-Joo
Lee, Yongseok
Park, Byeong-Gon
Pogge, Richard W.
Abe, Fumio
Barry, Richard
Bennett, David P.
Bhattacharya, Aparna
Donachie, Martin
Fukui, Akihiko
Hirao, Yuki
Itow, Yoshitaka
Kawasaki, Kohei
Kondo, Iona
Koshimoto, Naoki
Li, Man Cheung Alex
Matsubara, Yutaka
Muraki, Yasushi
Miyazaki, Shota
Nagakane, Masayuki
Ranc, Clement
Rattenbury, Nicholas J.
Suematsu, Haruno
Sullivan, Denis J.
Sumi, Takahiro
Suzuki, Daisuke
Tristram, Paul J.
Yonehara, Atsunori
Mroz, Przemek
Poleski, Radek
Skowron, Jan
ASTROPHYSICAL JOURNAL, 2019, 872 (02):
[18] Optical Gravitational Lensing Experhnent OGLE-1999-BUL-32: the longest ever microlensing event - evidence for a stellar mass black hole?
Mao, S
Smith, MC
Wozniak, P
Udalski, A
Szymanski, M
Kubiak, M
Pietrzynski, G
Soszynski, I
Zebrun, K
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2002, 329 (02) : 349 - 354
[19] OGLE-2016-BLG-0263Lb: Microlensing Detection of a Very Low-mass Binary Companion through a Repeating Event Channel
Han, C.
Udalski, A.
Gould, A.
Bond, I. A.
Albrow, M. D.
Chung, S. -J.
Jung, Y. K.
Ryu, Y. -H.
Shin, I. -G.
Yee, J. C.
Zhu, W.
Cha, S. -M.
Kim, S. -L.
Kim, D. -J.
Lee, C. -U.
Lee, Y.
Park, B. -G.
Skowron, J.
Mroz, P.
Pietrukowicz, P.
Kozlowski, S.
Poleski, R.
Szymanski, M. K.
Soszynski, I.
Ulaczyk, K.
Pawlak, M.
Abe, F.
Asakura, Y.
Barry, R.
Bennett, D. P.
Bhattacharya, A.
Donachie, M.
Evans, P.
Fukui, A.
Hirao, Y.
Itow, Y.
Koshimoto, N.
Li, M. C. A.
Ling, C. H.
Masuda, K.
Matsubara, Y.
Muraki, Y.
Nagakane, M.
Ohnishi, K.
Ranc, C.
Rattenbury, N. J.
Saito, To.
Sharan, A.
Sullivan, D. J.
Sumi, T.
ASTRONOMICAL JOURNAL, 2017, 154 (04):
[20] OGLE-2016-BLG-0596Lb: A High-mass Planet from a High-magnification Pure-survey Microlensing Event
Mroz, P.
Han, C.
Udalski, A.
Poleski, R.
Skowron, J.
Szymanski, M. K.
Soszynski, I.
Pietrukowicz, P.
Kozlowski, S.
Ulaczyk, K.
Wyrzykowski, L.
Pawlak, M.
Albrow, M. D.
Cha, S. -M.
Chung, S. -J.
Jung, Y. K.
Kim, D. -J.
Kim, S. -L.
Lee, C. -U.
Lee, Y.
Park, B. -G.
Pogge, R. W.
Ryu, Y. -H.
Shin, I. -G.
Yee, J. C.
Zhu, W.
Gould, A.
ASTRONOMICAL JOURNAL, 2017, 153 (04):

← 1 2 3 →