# overview
Distance Scale: Cepheids, Miras, detached eclipsing binaries, SNe Ia -- Massive time-series photometry: stellar variability & exoplanet searches -- Transients: LIGO EM counterparts -- Large-scale structure and flows: redshift and peculiar velocity surveys

# keywords[]
Open Clusters And Associations: Individual (arches Cluster)

# keywords[]
Supernovae : Individual (sn 1957a, Sn 1991bg, Sn 1998bp, Sn 1999by)

# keywords[]
Galaxies : Fundamental Parameters Galaxies : Kinematics And Dynamics

# keywords[]
Galaxies : Elliptical And Lenticular, Cd

# educationAndTraining[].organization.label
Harvard-Smithsonian Center for Astrophysics - (Cambridge, Massachusetts, United States)

# educationAndTraining[].organization.label
Massachusetts Institute of Technology - (Cambridge, Massachusetts, United States)

# awardsAndHonors[].label
Association of Former Students College-Level Teaching Distinguished Achievement Award, The

# publications[].label
Variability-selected quasars behind the Small Magellanic Cloud

# publications[].label
Large Magellanic Cloud Near-infrared Synoptic Survey. IV. Leavitt Laws for Type II Cepheid Variables

# publications[].label
The SH0ES Project: Observations of Cepheids in NGC 4258 and Type Ia SN Hosts

# publications[].label
Monitoring luminous yellow massive stars in M33_ new yellow hypergiant candidates

# publications[].label
Consistent Calibration of the Tip of the Red Giant Branch in the Large Magellanic Cloud on the Hubble Space Telescope Photometric System and a Redetermination of the Hubble Constant

# publications[].label
A 15.65-solar-mass black hole in an eclipsing binary in the nearby spiral galaxy M 33.

# publications[].label
IRAC Band PeriodLuminosity Relations from LMC Cepheids: Application to Three Nearby Galaxies

# publications[].label
A First Look at Cepheids in a Type Ia Supernova Host with JWST

# publications[].label
The extragalactic distance scale key project .8. The discovery of cepheids and a new distance to NGC 3621 using the Hubble Space Telescope

# publications[].label
Stellar variability from Dome A, Antarctica

# publications[].label
The Hubble Constant in the Era of Precision Cosmology

# publications[].label
LARGE MAGELLANIC CLOUD NEAR-INFRARED SYNOPTIC SURVEY. I. CEPHEID VARIABLES AND THE CALIBRATION OF THE LEAVITT LAW

# publications[].label
The Hubble Space Telescope key project on the extragalactic distance scale. XX. The discovery of cepheids in the virgo cluster galaxy NGC 4548

# publications[].label
Absolute Calibration of Cepheid Period-Luminosity Relations in NGC 4258

# publications[].label
SUPPLEMENT: "LOCALIZATION AND BROADBAND FOLLOW-UP OF THE GRAVITATIONAL-WAVE TRANSIENT GW150914" (2016, ApJL, 826, L13)

# publications[].label
Addressing Decadal Survey Science through Community Access to Highly Multiplexed Spectroscopy with BigBOSS on the KPNO Mayall Telescope

# publications[].label
New X-Ray Quasars behind the Small Magellanic Cloud**Based on observations collected at the 6.5 m Magellan Baade Telescope.

# publications[].label
NICMOS observations of extragalactic Cepheids. I. Photometry database and a test of the standard extinction law

# publications[].label
The Hubble Space Telescope key project on the extragalactic distance scale. XIX. The discovery of Cepheids in and a new distance to NGC 3198

# publications[].label
A new Cepheid distance to the maser-host galaxy NGC 4258 and its implications for the Hubble constant

# publications[].label
Observations of the First Electromagnetic Counterpart to a Gravitational-wave Source by the TOROS Collaboration

# publications[].label
A 2.4% DETERMINATION OF THE LOCAL VALUE OF THE HUBBLE CONSTANT

# publications[].label
MEGA-SH0ES: Revising the Cepheid Distance to NGC 1365

# publications[].label
The Cepheid Distance to the Narrow-line Seyfert 1 Galaxy NGC 4051

# publications[].label
2MTF-IV. A bulk flow measurement of the local Universe

# publications[].label
The hubble space telescope key project on the extragalactic distance scale. XXI. The cepheid distance to NGC 1425

# publications[].label
2MTF-VI. Measuring the velocity power spectrum

# publications[].label
A REDETERMINATION OF THE HUBBLE CONSTANT WITH THE HUBBLE SPACE TELESCOPE FROM A DIFFERENTIAL DISTANCE LADDER

# publications[].label
The Distance to the Massive Eclipsing Binary LMC-SC1-105 in the Large Magellanic Cloud

# publications[].label
ROSAT OBSERVATIONS OF 9 GLOBULAR-CLUSTERS

# publications[].label
CEPHEID CALIBRATIONS OF MODERN TYPE Ia SUPERNOVAE: IMPLICATIONS FOR THE HUBBLE CONSTANT

# publications[].label
A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km s(-1) Mpc(-1) Uncertainty from the Hubble Space Telescope and the SH0ES Team

# publications[].label
Results of optical follow-up observations of advanced LIGO triggers from O1 in the southern hemisphere

# publications[].label
Hubble Space Telescope Observations of Mira Variables in the SN Ia Host NGC 1559: An Alternative Candle to Measure the Hubble Constant

# publications[].label
The dipole anisotropy of the 2 micron all-sky redshift survey

# publications[].label
LOCALIZATION AND BROADBAND FOLLOW-UP OF THE GRAVITATIONAL-WAVE TRANSIENT GW 150914

# publications[].label
Erratum: Groups of Galaxies in the Two Micron All Sky Redshift Survey (ApJ, 655, 790 [2007])

# publications[].label
The Hubble space telescope key project on the extragalactic distance scale. XXIV. The calibration of tully-fisher relations and the value of the Hubble constant

# publications[].label
The Cepheid distance to the maser-host galaxy NGC 4258: studying systematics with the Large Binocular Telescope

# publications[].label
A DIRECT STELLAR METALLICITY DETERMINATION IN THE DISK OF THE MASER GALAXY NGC 4258

# publications[].label
The hubble space telescope key project on the extragalactic distance scale. XXII. The discovery of cepheids in NGC 1326A

# publications[].label
Cluster Cepheids with High Precision Gaia Parallaxes, Low Zero-point Uncertainties, and Hubble Space Telescope Photometry

# publications[].label
GW150914: FIRST SEARCH FOR THE ELECTROMAGNETIC COUNTERPART OF A GRAVITATIONAL-WAVE EVENT BY THE TOROS COLLABORATION

# publications[].label
First SN Discoveries from the Dark Energy Survey

# publications[].label
THE 2MASS REDSHIFT SURVEY-DESCRIPTION AND DATA RELEASE

# publications[].label
The Hubble Space Telescope key project on the Extragalactic Distance Scale. XIX. The discovery of Cepheids in and a new distance to NGC 3198

# publications[].label
ERRATUM: A 3% SOLUTION: DETERMINATION OF THE HUBBLE CONSTANT WITH THE HUBBLE SPACE TELESCOPE AND WIDE FIELD CAMERA 3 (2011, ApJ, 730, 119)

# publications[].label
Difference Image Analysis of De-Focused 2009 CSTAR Observations

# publications[].label
The direct project: Catalogs of stellar objects in nearby galaxies. I. The central part of M33

# publications[].label
THE DISTANCE TO THE MASSIVE ECLIPSING BINARY LMC-SC1-105 IN THE LARGE MAGELLANIC CLOUD

# publications[].label
OPTICAL IDENTIFICATION OF CEPHEIDS IN 19 HOST GALAXIES OF TYPE Ia SUPERNOVAE AND NGC 4258 WITH THE HUBBLE SPACE TELESCOPE

# publications[].label
The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XVII. The Cepheid distance to NGC 4725

# publications[].label
Direct distances to nearby galaxies using detached eclipsing binaries and Cepheids. IX. Variables in the field M31Y discovered with image subtraction

# publications[].label
Large Magellanic Cloud Near-Infrared Synoptic Survey (LMCNISS): Overview and Science Highlights for Classical and hype-II Cepheids

# publications[].label
PHOTOMETRY OF VARIABLE STARS FROM DOME A, ANTARCTICA

# publications[].label
Variability of young massive stars in the Arches cluster

# publications[].label
PERIOD ESTIMATION FOR SPARSELY SAMPLED QUASI-PERIODIC LIGHT CURVES APPLIED TO MIRAS

# publications[].label
Evidence for an Outer Disk in the Prototype Compact Elliptical Galaxy M32

# publications[].label
A STUDY OF CEPHEIDS IN M81 WITH THE LARGE BINOCULAR TELESCOPE (EFFICIENTLY CALIBRATED WITH HUBBLE SPACE TELESCOPE)

# publications[].label
Large Magellanic Cloud Near-infrared Synoptic Survey. V. PeriodLuminosity Relations of Miras

# publications[].label
The Accuracy of the Hubble Constant Measurement Verified through Cepheid Amplitudes

# publications[].label
The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XI. The Cepheids in NGC 4414

# publications[].label
2MTF III. H I 21 cm observations of 1194 spiral galaxies with the Green Bank Telescope

# publications[].label
A Wide Angle Survey of Young Stellar Associations for Hot Jupiters and Pre-Main Sequence Binaries

# publications[].label
Cosmic Distances Calibrated to 1% Precision with Gaia EDR3 Parallaxes and Hubble Space Telescope Photometry of 75 Milky Way Cepheids Confirm Tension with ?CDM

# publications[].label
A Cepheid is no more: Hubble's variable 19 in M33

# publications[].label
Discovery of four X-ray quasars behind the Large Magellanic Cloud

# publications[].label
Final results from the Hubble Space Telescope key project to measure the Hubble constant

# publications[].label
LARGE MAGELLANIC CLOUD NEAR-INFRARED SYNOPTIC SURVEY. II. THE WESENHEIT RELATIONS AND THEIR APPLICATION TO THE DISTANCE SCALE

# publications[].label
Teacher Professional Development in Laredo, TX

# publications[].label
ASASSN-17bq: Discovery of A Supernova in GALEXASC J072538.14+590010.5

# publications[].label
2MTF-V. Cosmography, beta, and the residual bulk flow

# publications[].label
The Type Ia supernova 1998bu in M96 and the Hubble constant

# publications[].label
A WIDE-FIELD SURVEY FOR TRANSITING HOT JUPITERS AND ECLIPSING PRE-MAIN-SEQUENCE BINARIES IN YOUNG STELLAR ASSOCIATIONS

# publications[].label
Monitoring luminous yellow massive stars in M33: new yellow hypergiant candidates

# publications[].label
Large Magellanic Cloud Near-infrared Synoptic Survey. V. Period-Luminosity Relations of Miras

# publications[].label
The Hubble space telescope key project on the extragalactic distance scale. XXVIII. Combining the constraints on the Hubble constant

# publications[].label
PULSATIONS AND PERIOD CHANGES OF THE NON-BLAZHKO RR LYRAE VARIABLE Y OCT OBSERVED FROM DOME A, ANTARCTICA

# publications[].label
Variability of Young Massive Stars in the Arches Cluster

# publications[].label
Identification of RR Lyrae Stars in Multiband, Sparsely Sampled Data from the Dark Energy Survey Using Template Fitting and Random Forest Classification

# publications[].label
2MTF-II. New Parkes 21-cm observations of 303 southern galaxies

# publications[].label
Milky Way Cepheid Standards for Measuring Cosmic Distances and Application to Gaia DR2: Implications for the Hubble Constant

# publications[].label
The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XIII. The Metallicity Dependence of the Cepheid Distance Scale**Based on observations with the NASA/ESA Hubble Space Telescope obtained at the Space Telescope Science Institute, which is operated by AURA, Inc., under NASA Contract No. NAS5-26555. ****Observations reported here have been obtained in part with the Multiple Mirror Telescope (MMT), a joint facility of the University of Arizona and the Smithsonian Institution.

# publications[].label
The Nonlinearity Of The First Overtone Cepheid PL Relation

# publications[].label
A PROGRAM FOR OPTICAL OBSERVATIONS OF ADVANCED LIGO EARLY TRIGGERS IN THE SOUTHERN HEMISPHERE

# publications[].label
The direct project: Influence of blending on the cepheid distance scale. I. Cepheids in M31

# publications[].label
CfA3: 185 TYPE Ia SUPERNOVA LIGHT CURVES FROM THE CfA

# publications[].label
Crowded No More: The Accuracy of the Hubble Constant Tested with High-resolution Observations of Cepheids by JWST

# publications[].label
The discovery of Cepheids and a new distance to NGC 2841 using the Hubble Space Telescope

# publications[].label
The 2massTullyFisher Survey: Mapping the mass in the Universe

# publications[].label
Comparing the 2MTF and 6dFGS Peculiar Velocity Surveys to models from redshift surveys

# publications[].label
Recent Progress on the Cepheid Distance Scale with HST

# publications[].label
DIFFERENCE IMAGE ANALYSIS OF DEFOCUSED OBSERVATIONS WITH CSTAR

# publications[].label
The Hubble space telescope key project on the extragalactic distance scale. XXV. A recalibration of Cepheid distances to type Ia supernovae and the value of the Hubble constant

# publications[].label
A 1.3% Distance to M33 from Hubble Space Telescope Cepheid Photometry

# publications[].label
The first direct distance determination to a detached eclipsing binary in M33

# publications[].label
ERRATUM: A 3% SOLUTION: DETERMINATION OF THE HUBBLE CONSTANT WITH THE HUBBLE SPACE TELESCOPE AND WIDE FIELD CAMERA 3 (ApJ, 2011, 730, 119)

# publications[].label
A Wide Angle Search for Hot Jupiters and Pre-Main Sequence Binaries in Young Stellar Associations

# publications[].label
Large Magellanic Cloud Near-Infrared Synoptic Survey - III. A statistical study of non-linearity in the Leavitt Laws

# publications[].label
Reconstructed density and velocity fields from the 2MASS Redshift Survey

# publications[].label
Progress and Results from the Chinese Small Telescope ARray (CSTAR)

# publications[].label
Near-infrared Mira Period-Luminosity Relations in M33

# publications[].label
Cepheids and Long Period Variables in M33

# publications[].label
Measurements of the Hubble Constant with a Two-rung Distance Ladder: Two Out of Three Ain't Bad

# publications[].label
Near-infrared Observations of Cepheid Variables in the Large Magellanic Cloud

# publications[].label
A Hubble Space Telescope study of extragalactic OB associations

# publications[].label
A 3% SOLUTION: DETERMINATION OF THE HUBBLE CONSTANT WITH THE HUBBLE SPACE TELESCOPE AND WIDE FIELD CAMERA 3

# publications[].label
The Hubble space telescope key project on the extragalactic distance scale. XXVII. A derivation of the Hubble constant using the fundamental plane and D<inf>n</inf>- relations in Leo I, Virgo, and Fornax

# publications[].label
La constante de Hubble en la era de la cosmologa de precisin

# publications[].label
The K Band Luminosities of Galaxies_ Do S0s Come from Spiral Galaxies?

# publications[].label
H-band Light Curves of Milky Way Cepheids via Difference Imaging

# publications[].label
A Sub-2% Distance to M31 from Photometrically Homogeneous Near-infrared Cepheid Period-Luminosity Relations Measured with the Hubble Space Telescope

# publications[].label
DIFFERENCE IMAGE ANALYSIS OF DEFOCUSED OBSERVATIONS WITH CSTAR

# publications[].label
Direct distances to nearby galaxies using detached eclipsing binaries and Cepheids. VI. Variables in the central part of M331

# publications[].label
CEPHEID VARIABLES IN THE MASER-HOST GALAXY NGC 4258

# publications[].label
The Hubble Space Telescope key project on the extragalactic distance scale. XIV. The Cepheids in NGC 1365

# publications[].label
THE M 33 SYNOPTIC STELLAR SURVEY. I. CEPHEID VARIABLES

# publications[].label
The luminosity of SN 1999by in NGC 2841 and the nature of "peculiar" Type Ia supernovae

# publications[].label
Observations of the first electromagnetic counterpart to a gravitational wave source by the TOROS collaboration

# publications[].label
The extragalactic distance scale key project. XVIII. The discovery of Cepheids and a new distance to NGC 4535 using the Hubble Space Telescope

# publications[].label
The Hubble Space Telescope Extragalactic Distance Scale Key Project. XXIII. The discovery of Cepheids in NGC 3319

# publications[].label
STELLAR VARIABILITY AND FLARE RATES FROM DOME A, ANTARCTICA, USING 2009 AND 2010 CSTAR OBSERVATIONS

# publications[].label
UBVRI light curves of 44 type Ia supernovae

# publications[].label
MEGA-SH0ES: A Cepheid distance to M101 based on WFC3 H-band photometry

# publications[].label
Cepheids and Long-Period Variables in NGC 4258

# publications[].label
Adapting Predictive Models for Cepheid Variable Star Classification Using Linear Regression and Maximum Likelihood

# publications[].label
A Search for Miras in M33 Using Sparsely-Sampled Time Series Photometry

# publications[].label
The discovery of cepheids and a new distance to NGC 2841 using the Hubble space telescope

# publications[].label
Identifying RR Lyrae Variable Stars in Six Years of the Dark Energy Survey

# publications[].label
IONIZATION NEBULAE SURROUNDING CAL-83 AND OTHER SUPERSOFT X-RAY SOURCES

# publications[].label
SN. 2012cg: EVIDENCE FOR INTERACTION BETWEEN A NORMAL SN Ia AND A NON-DEGENERATE BINARY COMPANION

# publications[].label
BVRI light curves for 22 Type Ia supernovae

# publications[].label
A database of Tully-Fisher calibrator galaxies

# publications[].label
Clusters of galaxies in the local universe

# publications[].label
Photometry of Variables from Dome A, Antarctica

# publications[].label
Groups of galaxies in the two micron all sky redshift survey

# publications[].label
Domain Adaptation Under Data Misalignment: An Application to Cepheid Variable Star Classification

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
The Hubble Space Telescope Extragalactic distance scale key project. XXIII. The discovery of Cepheids in NGC 3319

# publications[].label
Large MagellanicCloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics beyond Lambda CDM

# publications[].label
A machine learning approach to Cepheid variable star classification using data alignment and maximum likelihood

# publications[].label
The Cepheid Distance to the Seyfert 1 Galaxy NGC 4151

# publications[].label
The 2MASS Redshift Survey in the Zone of Avoidance

# publications[].label
Discovery of nine quasars behind the Large Magellanic Cloud

# publications[].label
Large Magellanic Cloud Near-infrared Synoptic Survey. IV. Leavitt Laws for Type II Cepheid Variables

# publications[].label
The first DIRECT distance to a detached eclipsing binary in M33

# publications[].label
The Hubble Space Telescope Extragalactic Distance Scale Key Project .7. The discovery of Cepheids in the Leo I group galaxy NGC 3351

# publications[].label
A Near-infrared Period-Luminosity Relation for Miras in NGC 4258, an Anchor for a New Distance Ladder

# publications[].label
Difference Image Analysis of 2009 CSTAR Observations from Dome A in Antarctica

# publications[].label
On the variation of Fourier parameters for Galactic and LMC Cepheids at optical, near-infrared and mid-infrared wavelengths

# publications[].label
The Extragalactic Distance Scale Key Project. XVIII. The discovery of Cepheids and a new distance to NGC 4535 using the Hubble Space Telescope

# publications[].label
LARGE MAGELLANIC CLOUD NEAR-INFRARED SYNOPTIC SURVEY. I. CEPHEID VARIABLES AND THE CALIBRATION OF THE LEAVITT LAW (vol 149, 117, 2015)

# publications[].label
High-resolution Spectroscopic Metallicities of Milky Way Cepheid Standards and Their Impact on the Leavitt Law and the Hubble Constant

# publications[].label
New Parallaxes of Galactic Cepheids from Spatially Scanning the Hubble Space Telescope: Implications for the Hubble Constant

# publications[].label
DETECTION OF A LIGHT ECHO FROM THE OTHERWISE NORMAL SN 2007af

# publications[].label
PHOTOMETRY OF VARIABLE STARS FROM DOME A, ANTARCTICA: RESULTS FROM THE 2010 OBSERVING SEASON

# publications[].label
Multi-messenger Observations of a Binary Neutron Star Merger

# publications[].label
The M33 Synoptic Stellar Survey. II. Mira Variables

# publications[].label
The Hubble space telescope key project on the extragalactic distance scale. XXVI. The calibration of population II secondary distance indicators and the value of the Hubble constant

# publications[].label
The K-band luminosities of galaxies: Do S0s come from spiral galaxies?

# publications[].label
Deep optical imaging of the bright Seyfert galaxy NGC 5548: A long, very low surface brightness tail

# researcherOn[].label
The Absolute Calibration of Cepheid An Dmira Period- Luminosity Relations In the Near-Infrared

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# streetAddress
Texas A&M University; Physics And Astronomy; 4242 TAMU

# etdChairOf[].label
Yuan, Wenlong (2017-05). Period-Luminosity Relations of Cepheid and Mira Variables and Their Application to the Extragalactic Distance Scale. Doctoral Dissertation.

# etdChairOf[].label
Oelkers, Ryan James (2016-04). The Precision Analysis of Time Series Photometry and Its Application to Searches for Pre-Main-Sequence Objects. Doctoral Dissertation.

# etdChairOf[].label
Hoffmann, Samantha L (2013-05). Cepheid Variables and their Application to the Cosmological Distance Scale. Doctoral Dissertation.