A Distance determination to the Small Magellanic Cloud with an accuracy of better than two percent based on late-type eclipsing binary stars

D Graczyk, G Pietrzyński, IB Thompson… - The Astrophysical …, 2020 - iopscience.iop.org
We present a new study of late-type eclipsing binary stars in the Small Magellanic Cloud
(SMC) undertaken with the aim of improving the distance determination to this important …

Reddening and extinction toward the galactic bulge from OGLE-III: the inner milky way's Rv∼ 2.5 extinction curve

DM Nataf, A Gould, P Fouqué… - The Astrophysical …, 2013 - iopscience.iop.org
We combine VI photometry from OGLE-III with VISTA Variables in The Via Lactea survey and
Two Micron All Sky Survey measurements of E (J− K s) to resolve the longstanding problem …

Are the variations in quasar optical flux driven by thermal fluctuations?

BC Kelly, J Bechtold… - The Astrophysical …, 2009 - iopscience.iop.org
We analyze a sample of optical light curves for 100 quasars, 70 of which have black hole
mass estimates. Our sample is the largest and broadest used yet for modeling quasar …

The MACHO project: microlensing results from 5.7 years of Large Magellanic Cloud observations

C Alcock, RA Allsman, DR Alves… - The Astrophysical …, 2000 - iopscience.iop.org
We report on our search for microlensing toward the Large Magellanic Cloud (LMC).
Analysis of 5.7 yr of photometry on 11.9 million stars in the LMC reveals 13–17 microlensing …

New limits from microlensing on Galactic black holes in the mass range 10 M⊙< M< 1000 M⊙

T Blaineau, M Moniez, C Afonso, JN Albert… - Astronomy & …, 2022 - aanda.org
We searched for long-duration microlensing events originating from intermediate-mass
black holes (BH) in the halo of the Milky Way, using archival data from the EROS-2 and …

Binary planetary nebulae nuclei towards the Galactic bulge-I. Sample discovery, period distribution, and binary fraction

B Miszalski, A Acker, AFJ Moffat, QA Parker… - Astronomy & …, 2009 - aanda.org
Binarity has been hypothesised to play an important, if not ubiquitous, role in the formation of
planetary nebulae (PNe). Yet there remains a severe paucity of known binary central stars …

Bump cepheids in the Magellanic Clouds: metallicities, the distances to the LMC and SMC, and the pulsation-evolution mass discrepancy

SC Keller, PR Wood - The Astrophysical Journal, 2006 - iopscience.iop.org
We use nonlinear pulsation models to reproduce the observed light and color curves for two
samples of bump Cepheid variables, 19 from the Large Magellanic Cloud and 9 from the …

Testing LMC microlensing scenarios: the discrimination power of the SuperMACHO microlensing survey

A Rest, C Stubbs, AC Becker, GA Miknaitis… - The Astrophysical …, 2005 - iopscience.iop.org
Characterizing the nature and spatial distribution of the lensing objects that produce the
previously measured microlensing optical depth toward the Large Magellanic Cloud (LMC) …

Gravitational microlensing events due to stellar-mass black holes

DP Bennett, AC Becker, JL Quinn… - The Astrophysical …, 2002 - iopscience.iop.org
We present an analysis of the longest timescale microlensing events discovered by the
MACHO Collaboration during a 7 year survey of the Galactic bulge. We find six events that …

The MACHO project: microlensing optical depth toward the galactic bulge from difference image analysis

C Alcock, RA Allsman, DR Alves… - The Astrophysical …, 2000 - iopscience.iop.org
We present the microlensing optical depth toward the Galactic bulge based on the detection
of 99 events found in our Difference Image Analysis (DIA) survey. This analysis …