Ruprecht-Karls-Universität Heidelberg
Personnel > 

Prof. Dr. Joachim Wambsganß

Astronomisches Rechen-Institut



Office
Neubau, Room N.1-12

Postal address
Zentrum für Astronomie der Universität Heidelberg
Astronomisches Rechen-Institut
Mönchhofstr. 12-14
69120 Heidelberg






Publications done at ZAH since 2007

80.
10/2018
Ducourant, C.; Wertz, O. et al. (inc. Bastian, U.; Wambsganss, J.; Klüter, J.)
Gaia GraL: Gaia DR2 gravitational lens systems. II. The known multiply imaged quasars
A&A 618, A56(2018)

79.
8/2018
Krone-Martins, A.; Delchambre, L. et al. (inc. Wambsganss, J.; Bastian, U.; Klüter, J.)
Gaia GraL: Gaia DR2 gravitational lens systems. I. New quadruply imaged quasar candidates around known quasars
A&A 616, L11(2018)

78.
7/2018
Klüter, J.; Bastian, U.; Demleitner, M.; Wambsganss, J.
Ongoing astrometric microlensing events of two nearby stars
A&A 615, L11(2018)

77.
4/2018
Tomozeiu, Mihai; Mohammed, Irshad et al. (inc. Wambsganss, Joachim)
Microlensing as a possible probe of event-horizon structure in quasars
MNRAS 475, 1925(2018)

76.
3/2018
Bennett, D. P.; Udalski, A. et al. (inc. Wambsganss, J.)
The First Planetary Microlensing Event with Two Microlensed Source Stars
AJ 155, 141(2018)

75.
1/2018
Hundertmark, M.; Street, R. A. et al. (inc. Ment, K.; Wambsganss, J.; Schmidt, R. W.; Tsapras, Y.)
RoboTAP: Target priorities for robotic microlensing observations
A&A 609, A55(2018)

74.
1/2018
Ryu, Y. -H.; Yee, J. C. et al. (inc. Ment, S. K.; Wambsganss, J.; Schmidt, R.; Hundertmark, M.; Tsapras, Y.)
OGLE-2016-BLG-1190Lb: The First Spitzer Bulge Planet Lies Near the Planet/Brown-dwarf Boundary
AJ 155, 40(2018)

73.
1/2018
Udalski, A.; Han, C. et al. (inc. Wambsganss, J.; Schmidt, R.)
OGLE-2014-BLG-0289: Precise Characterization of a Quintuple-peak Gravitational Microlensing Event
ApJ 853, 70(2018)

72.
8/2017
Wang, Tianshu; Zhu, Wei et al. (inc. Schmidt, R.; Wambsganss, J.; Hundertmark, M.; Tsapras, Y.)
Ground-based Parallax Confirmed by Spitzer: Binary Microlensing Event MOA-2015-BLG-020
ApJ 845, 129(2017)

71.
4/2017
Rattenbury, N. J.; Bennett, D. P. et al. (inc. Schmidt, R.; Wambsganss, J.; Hundertmark, M.; Giannini, E.; Diehl, C.; Tsapras, Y.)
Faint-source-star planetary microlensing: the discovery of the cold gas-giant planet OGLE-2014-BLG-0676Lb
MNRAS 466, 2710(2017)

70.
1/2017
Giannini, E.; Schmidt, R. W. et al. (inc. Zimmer, F.; Schönebeck, F.; Proft, S.; Maier, G.; Liebig, C.; Gerner, T.; Diehl, C.; Wambsganss, J.)
MiNDSTEp differential photometry of the gravitationally lensed quasars WFI 2033-4723 and HE 0047-1756: microlensing and a new time delay
A&A 597, A49(2017)

69.
12/2016
Henderson, Calen B.; Poleski, Radosław et al. (inc. Wambsganss, J.; Tsapras, Y.; Schmidt, R.)
Campaign 9 of the K2 Mission: Observational Parameters, Scientific Drivers, and Community Involvement for a Simultaneous Space- and Ground-based Microlensing Survey
PASP 128, l4401(2016)

68.
11/2016
Bennett, D. P.; Rhie, S. H. et al. (inc. Zub, M.; Wambsganss, J.; Tsapras, Y.)
The First Circumbinary Planet Found by Microlensing: OGLE-2007-BLG-349L(AB)c
AJ 152, 125(2016)

67.
11/2016
Bhattacharya, A.; Bennett, D. P. et al. (inc. Wambsganss, J.; Schmidt, R.; Tsapras, Y.)
Discovery of a Gas Giant Planet in Microlensing Event OGLE-2014-BLG-1760
AJ 152, 140(2016)

66.
11/2016
Shvartzvald, Y.; Li, Z. et al. (inc. Wambsganss, J.; Schmidt, R.; Tsapras, Y.)
The First Simultaneous Microlensing Observations by Two Space Telescopes: Spitzer and Swift Reveal a Brown Dwarf in Event OGLE-2015-BLG-1319
ApJ 831, 183(2016)

65.
9/2016
Han, C.; Udalski, A. et al. (inc. Wambsganss, J.; Schmidt, R.; Figuera Jaimes, R.; Tsapras, Y.)
OGLE-2015-BLG-0479LA,B: Binary Gravitational Microlens Characterized by Simultaneous Ground-based and Space-based Observations
ApJ 828, 53(2016)

64.
7/2016
Zhu, Wei; Calchi Novati, S. et al. (inc. Wambsganss, J.; Schmidt, R.; Tsapras, Y.)
Mass Measurements of Isolated Objects from Space-based Microlensing
ApJ 825, 60(2016)

63.
5/2016
Poleski, Radosław; Zhu, Wei et al. (inc. Schmidt, R.; Wambsganss, J.; Tsapras, Y.)
The Spitzer Microlensing Program as a Probe for Globular Cluster Planets: Analysis of OGLE-2015-BLG-0448
ApJ 823, 63(2016)

62.
3/2016
Street, R. A.; Udalski, A. et al. (inc. Schmidt, R. ; Wambsganß, J.; Tsapras, Y.)
Spitzer Parallax of OGLE-2015-BLG-0966: A Cold Neptune in the Galactic Disk
ApJ 819, 93 (2016)

61.
12/2015
Shvartzvald, Y.; Udalski, A. et al. (inc. Schmidt, R.; Wambsganss, J.; Tsapras, Y.)
Spitzer Microlens Measurement of a Massive Remnant in a Well-separated Binary
ApJ 814, 111(2015)

60.
10/2015
Bachelet, E.; Bramich, D. M. et al. (inc. Schmidt, R. W.; Wambsganss, J.)
Red Noise Versus Planetary Interpretations in the Microlensing Event Ogle-2013-BLG-446
ApJ 812, 136(2015)

59.
8/2015
Ranc, C.; Cassan, A. et al. (inc. Zub, M.; Wambsganss, J.; Tsapras, Y.)
MOA-2007-BLG-197: Exploring the brown dwarf desert
A&A 580, A125(2015)

58.
6/2015
Genova, Françoise; Allen, Mark G. et al. (inc. Wambsganss, Joachim)
Euro-VO-Coordination of virtual observatory activities in Europe
A&C 11, 181(2015)

57.
5/2015
Calchi Novati, S.; Gould, A. et al. (inc. Schmidt, R. W.; Wambsganss, J.)
Pathway to the Galactic Distribution of Planets: Combined Spitzer and Ground-Based Microlens Parallax Measurements of 21 Single-Lens Events
ApJ 804, 20(2015)

56.
5/2015
Skowron, J.; Shin, I. -G. et al. (inc. Williams, A.; Wambsganss, J.)
OGLE-2011-BLG-0265Lb: A Jovian Microlensing Planet Orbiting an M Dwarf
ApJ 804, 33(2015)

55.
5/2015
Jeong, J.; Park, H. et al. (inc. Wambsganss, J.)
Reanalyses of Anomalous Gravitational Microlensing Events in the OGLE-III Early Warning System Database with Combined Data
ApJ 804, 38(2015)

54.
1/2015
Proft, Svea; Wambsganss, Joachim
Exploration of quasars with the Gaia mission
A&A 574, A46(2015)

53.
1/2015
Proft, Svea; Wambsganss, Joachim
Exploration of quasars with the Gaia mission
A&A 574, A46(2015)

52.
11/2014
Demleitner, M.; Neves, M. C.; Rothmaier, F.; Wambsganss, J.
Virtual observatory publishing with DaCHS
A&C 7, 27(2014)

51.
10/2014
Schechter, Paul L.; Pooley, David et al. (inc. Wambsganss, Joachim)
A Calibration of the Stellar Mass Fundamental Plane at z ~ 0.5 Using the Micro-lensing-induced Flux Ratio Anomalies of Macro-lensed Quasars
ApJ 793, 96(2014)

50.
4/2014
Yan, Chang-Shuo; Lu, Youjun et al. (inc. Wambsganss, Joachim)
Microlensing of Sub-parsec Massive Binary Black Holes in Lensed QSOs: Light Curves and Size-Wavelength Relation
ApJ 784, 100(2014)

49.
4/2014
Bennett, D. P.; Batista, V. et al. (inc. Zub, M.; Wambsganss, J.)
MOA-2011-BLG-262Lb: A Sub-Earth-Mass Moon Orbiting a Gas Giant Primary or a High Velocity Planetary System in the Galactic Bulge
ApJ 785, 155(2014)

48.
2/2014
Tsapras, Y.; Choi, J. -Y. et al. (inc. Zub, M.; Wambsganss, J.; Giannini, E.; Diehl, C.)
A Super-Jupiter Orbiting a Late-type Star: A Refined Analysis of Microlensing Event OGLE-2012-BLG-0406
ApJ 782, 48(2014)

47.
12/2013
Furusawa, K.; Udalski, A. et al. (inc. Wambsganss, J.; Schönebeck, F.; Proft, S.; Liebig, C.; Gerner, T.)
MOA-2010-BLG-328Lb: A Sub-Neptune Orbiting very Late M Dwarf?
ApJ 779, 91(2013)

46.
12/2013
Park, H.; Udalski, A. et al. (inc. Zub, M.; Wambsganss, J.)
Gravitational Binary-lens Events with Prominent Effects of Lens Orbital Motion
ApJ 778, 134(2013)

45.
5/2013
Sluse, D.; Kishimoto, M. et al. (inc. Wambsganss, J.)
Mid-infrared microlensing of accretion disc and dusty torus in quasars: effects on flux ratio anomalies
A&A 553, A53(2013)

44.
5/2013
Yee, J. C.; Hung, L. -W. et al. (inc. Wambsganss, J.; Schönebeck, F.; Proft, S.; Liebig, C.; Gerner, T.; Zub, M.)
MOA-2010-BLG-311: A Planetary Candidate below the Threshold of Reliable Detection
ApJ 769, 77(2013)

43.
5/2013
Choi, J. -Y.; Han, C. et al. (inc. Zub, M.; Zimmer, F.; Wambsganss, J.; Maier, G.; Liebig, C.)
Microlensing Discovery of a Population of Very Tight, Very Low Mass Binary Brown Dwarfs
ApJ 768, 129(2013)

42.
3/2013
Ricci, D.; Elyiv, A. et al. (inc. Zub, M.; Zimmer, F.; Wambsganss, J.; Schmidt, R.; Schönebeck, F.; Proft, S.; Maier, G.; Liebig, C.; Gerner, T.)
Flux and color variations of the doubly imaged quasar UM673
A&A 551, A104(2013)

41.
2/2013
Fohlmeister, Janine; Kochanek, Christopher S. et al. (inc. Wambsganss, Joachim)
A Two-year Time Delay for the Lensed Quasar SDSS J1029+2623
ApJ 764, 186(2013)

40.
2/2013
Gould, A.; Yee, J. C. et al. (inc. Zub, M.; Wambsganss, J.; Schönebeck, F.; Proft, S.; Gerner, T.)
MOA-2010-BLG-523: "Failed Planet" = RS CVn Star
ApJ 763, 141(2013)

39.
1/2013
Street, R. A.; Choi, J. -Y. et al. (inc. Schönebeck, F.; Proft, S.; Gerner, T.; Zub, M.; Wambsganss, J.)
MOA-2010-BLG-073L: An M-dwarf with a Substellar Companion at the Planet/Brown Dwarf Boundary
ApJ 763, 67(2013)

38.
12/2012
Shin, I. -G.; Han, C. et al. (inc. Zub, M.; Wambsganss, J.; Zimmer, F.; Proft, S.; Liebig, C.)
Microlensing Binaries with Candidate Brown Dwarf Companions
ApJ 760, 116(2012)

37.
11/2012
Bachelet, E.; Fouqué, P. et al. (inc. Zimmer, F.; Maier, G.; Liebig, C.; Zub, M.; Wambsganss, J.)
A brown dwarf orbiting an M-dwarf: MOA 2009-BLG-411L
A&A 547, A55(2012)

36.
9/2012
Choi, J. -Y.; Shin, I. -G. et al. (inc. Zub, M.; Wambsganss, J.)
A New Type of Ambiguity in the Planet and Binary Interpretations of Central Perturbations of High-magnification Gravitational Microlensing Events
ApJ 756, 48(2012)

35.
8/2012
Sluse, D.; Hutsemékers, D. et al. (inc. Wambsganss, J.)
Microlensing of the broad line region in 17 lensed quasars
A&A 544, A62(2012)

34.
8/2012
Bozza, V.; Dominik, M. et al. (inc. Zub, M.; Wambsganss, J.; Anguita, T.; Cassan, A.; Liebig, C.)
OGLE-2008-BLG-510: first automated real-time detection of a weak microlensing anomaly - brown dwarf or stellar binary?
MNRAS 424, 902(2012)

33.
8/2012
Shin, I. -G.; Han, C. et al. (inc. Zub, M.; Wambsganss, J.)
Characterizing Low-mass Binaries from Observation of Long-timescale Caustic-crossing Gravitational Microlensing Events
ApJ 755, 91(2012)

32.
7/2012
Bachelet, E.; Shin, I. -G. et al. (inc. Wambsganss, J.; Schönebeck, F.; Proft, S.; Gerner, T.; Zub, M.; Liebig, C.)
MOA 2010-BLG-477Lb: Constraining the Mass of a Microlensing Planet from Microlensing Parallax, Orbital Motion, and Detection of Blended Light
ApJ 754, 73(2012)

31.
6/2012
Miyake, N.; Udalski, A. et al. (inc. Zub, M.; Wambsganss, J.)
A Possible Binary System of a Stellar Remnant in the High-magnification Gravitational Microlensing Event OGLE-2007-BLG-514
ApJ 752, 82(2012)

30.
5/2012
Choi, J. -Y.; Shin, I. -G. et al. (inc. Zimmer, F.; Schönebeck, F.; Proft, S.; Maier, G.; Liebig, C.; Gerner, T.; Zub, M.; Wambsganss, J.)
Characterizing Lenses and Lensed Stars of High-magnification Single-lens Gravitational Microlensing Events with Lenses Passing over Source Stars
ApJ 751, 41(2012)

29.
2/2012
Shin, I. -G.; Choi, J. -Y. et al. (inc. Zimmer, F.; Schönebeck, F.; Proft, S.; Maier, G.; Liebig, C.; Gerner, T.; Zub, M.; Wambsganss, J.)
Microlensing Binaries Discovered through High-magnification Channel
ApJ 746, 127(2012)

28.
1/2012
Pooley, David; Rappaport, Saul et al. (inc. Wambsganss, Joachim)
X-Ray and Optical Flux Ratio Anomalies in Quadruply Lensed Quasars. II. Mapping the Dark Matter Content in Elliptical Galaxies
ApJ 744, 111(2012)

27.
1/2012
Cassan, A.; Kubas, D. et al. (inc. Zub, M.; Wambsganss, J.)
One or more bound planets per Milky Way star from microlensing observations
Natur 481, 167(2012)

26.
11/2011
Muraki, Y.; Han, C. et al. (inc. Zimmer, F.; Wambsganss, J.; Maier, G.; Zub, M.)
Discovery and Mass Measurements of a Cold, 10 Earth Mass Planet and Its Host Star
ApJ 741, 22(2011)

25.
9/2011
Skowron, J.; Udalski, A. et al. (inc. Zub, M.; Wambsganss, J.; Cassan, A.)
Binary Microlensing Event OGLE-2009-BLG-020 Gives Verifiable Mass, Distance, and Orbit Predictions
ApJ 738, 87(2011)

24.
5/2011
Zimmer, F.; Schmidt, R. W.; Wambsganss, J.
X-ray microlensing in the quadruply lensed quasar Q2237+0305
MNRAS 413, 1099(2011)

23.
4/2011
Sluse, D.; Schmidt, R. et al. (inc. Wambsganss, J.)
Zooming into the broad line region of the gravitationally lensed quasar QSO 2237 + 0305 ≡ the Einstein Cross. III. Determination of the size and structure of the C iv and C iii] emitting regions using microlensing
A&A 528, A100(2011)

22.
4/2011
Ricci, D.; Poels, J. et al. (inc. Zub, M.; Zimmer, F.; Wambsganß, J.; Maier, G.; Liebig, C.)
Flux and color variations of the quadruply imaged quasar HE 0435-1223
A&A 528, A42(2011)

21.
1/2011
Zub, M.; Cassan, A. et al. (inc. Wambsganss, J.)
Limb-darkening measurements for a cool red giant in microlensing event OGLE 2004-BLG-482
A&A 525, A15(2011)

20.
9/2010
Schmidt, R. W.; Wambsganss, J.
Quasar microlensing
GReGr 42, 2127(2010)

19.
9/2010
Liebig, C.; Wambsganss, J.
Detectability of extrasolar moons as gravitational microlenses
A&A 520, A68(2010)

18.
7/2010
Fouqué, P.; Heyrovský, D. et al. (inc. Liebig, C.; Anguita, T.; Wambsganss, J.)
OGLE 2008-BLG-290: an accurate measurement of the limb darkening of a galactic bulge K Giant spatially resolved by microlensing
A&A 518, A51(2010)

17.
4/2010
Kausch, W.; Schindler, S. et al. (inc. Wambsganss, J.)
ARCRAIDER II: Arc search in a sample of non-Abell clusters
A&A 513, A8(2010)

16.
2/2010
Sumi, T.; Bennett, D. P. et al. (inc. Zub, M.; Wambsganss, J.; Cassan, A.)
A Cold Neptune-Mass Planet OGLE-2007-BLG-368Lb: Cold Neptunes Are Common
ApJ 710, 1641(2010)

15.
11/2009
Anguita, T.; Faure, C. et al. (inc. Wambsganss, J.)
COSMOS 5921+0638: characterization and analysis of a new strong gravitationally lensed AGN
A&A 507, 35(2009)

14.
10/2009
Yee, J. C.; Udalski, A. et al. (inc. Wambsganss, J.; Martin, R.; Beaulieu, J. -P.)
Extreme Magnification Microlensing Event OGLE-2008-BLG-279: Strong Limits on Planetary Companions to the Lens Star
ApJ 703, 2082(2009)

13.
8/2009
Albrow, M. D.; Horne, K. et al. (inc. Zub, M.; Wambsganss, J.; Cassan, A.)
Difference imaging photometry of blended gravitational microlensing events with a numerical kernel
MNRAS 397, 2099(2009)

12.
6/2009
Pooley, D.; Rappaport, S. et al. (inc. Wambsganss, J.)
The Dark-matter Fraction in the Elliptical Galaxy Lensing the Quasar PG 1115+080
ApJ 697, 1892(2009)

11.
5/2009
Kains, N.; Cassan, A. et al. (inc. Wambsganss, J.; Anguita, T.; Zub, M.)
A systematic fitting scheme for caustic-crossing microlensing events
MNRAS 395, 787(2009)

10.
4/2009
Wambsganss, Joachim
An eye on the Universe
Natur 458, 1116(2009)

9.
11/2008
Eigenbrod, A.; Courbin, F. et al. (inc. Wambsganss, J.; Schmidt, R. W.; Anguita, T.)
Microlensing variability in the gravitationally lensed quasar QSO 2237+0305 ≡ the Einstein Cross. II. Energy profile of the accretion disk
A&A 490, 933(2008)

8.
5/2008
Kubas, D.; Cassan, A. et al. (inc. Zub, M.; Wambsganss, J.)
Limits on additional planetary companions to OGLE 2005-BLG-390L
A&A 483, 317(2008)

7.
4/2008
Wambsganss, Joachim; Ostriker, Jeremiah P. et al.
The Effect of Baryon Cooling on the Statistics of Giant Arcs and Multiple Quasars
ApJ 676, 753(2008)

6.
4/2008
Fohlmeister, J.; Kochanek, C. S. et al. (inc. Wambsganss, J.)
The Rewards of Patience: An 822 Day Time Delay in the Gravitational Lens SDSS J1004+4112
ApJ 676, 761(2008)

5.
4/2008
Anguita, T.; Faure, C. et al. (inc. Wambsganss, J.; Yonehara, A.)
Integral field spectroscopy of four lensed quasars: analysis of their neighborhood and evidence for microlensing
A&A 481, 615(2008)

4.
3/2008
Anguita, T.; Schmidt, R. W. et al. (inc. Wambsganss, J.)
The multiple quasar Q2237+0305 under a microlensing caustic
A&A 480, 327(2008)

3.
6/2007
Fohlmeister, J.; Kochanek, C. S. et al. (inc. Wambsganss, J.)
A Time Delay for the Cluster-Lensed Quasar SDSS J1004+4112
ApJ 662, 62(2007)

2.
5/2007
Dobler, Gregory; Keeton, Charles R.; Wambsganss, Joachim
Microlensing of central images in strong gravitational lens systems
MNRAS 377, 977(2007)

1.
3/2007
Faure, C.; Giraud, E. et al. (inc. Wambsganss, J.)
An S-shaped arc in the galaxy cluster RX J0054.0-2823
A&A 463, 833(2007)

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