Publications (48)
Deep ACS Imaging in the Globular Cluster NGC 6397: The Cluster Color Magnitude Diagram and Luminosity Function
Harvey B. Richer, Aaron Dotter, Jarrod Hurley +9
Ground-based, Near-infrared Exospectroscopy. II. Tentative Detection of Emission From the Extremely Hot Jupiter WASP-12b
Ian J. M. Crossfield, Brad M. S. Hansen, Travis Barman
Eleven Multi-planet Systems from K2 Campaigns 1 & 2 and the Masses of Two Hot Super-Earths
Evan Sinukoff, Andrew W. Howard, Erik A. Petigura +14
A Deep, Wide-Field, and Panchromatic View of 47 Tuc and the SMC with HST: Observations and Data Analysis Methods
Jason S. Kalirai, Harvey B. Richer, Jay Anderson +10
The Origin of Primordial Dwarf Stars and Baryonic Dark Matter
Brad M. S. Hansen
Early planet formation as a trigger for further planet formation
Philip J. Armitage, Brad M. S. Hansen
K2-66b and K2-106b: Two extremely hot sub-Neptune-size planets with high densities
Evan Sinukoff, Andrew W. Howard, Erik A. Petigura +20
Deep ACS Imaging in the Globular Cluster NGC6397: Dynamical Models
Jarrod R. Hurley, Michael M. Shara, Harvey B. Richer +8
The Space Motion of the Globular Cluster NGC 6397
Jasonjot S. Kalirai, Jay Anderson, Harvey B. Richer +12
Old White Dwarfs as a Microlensing Population
Brad M. S. Hansen
Two Transiting Low Density Sub-Saturns from K2
Erik A. Petigura, Andrew W. Howard, Eric D. Lopez +11
Two Transiting Earth-size Planets Near Resonance Orbiting a Nearby Cool Star
Erik A. Petigura, Joshua E. Schlieder, Ian J. M. Crossfield +11
The Pulsar Kick Velocity Distribution
Brad M. S. Hansen, E. Sterl Phinney
On the frequency and remnants of Hypernovae
Brad M. S. Hansen
Eccentric Planets and Stellar Evolution as a Cause of Polluted White Dwarfs
Shane F. N. Frewen, Brad M. S. Hansen
The Initial-Final Mass Relationship: Spectroscopy of White Dwarfs in NGC 2099 (M37)
Jasonjot Singh Kalirai, Harvey B. Richer, David Reitzel +5
The Initial-Final Mass Relation: Direct Constraints at the Low Mass End
Jasonjot S. Kalirai, Brad M. S. Hansen, Daniel D. Kelson +3
Migration then assembly: Formation of Neptune mass planets inside 1 AU
Brad M. S. Hansen, Norm Murray
Radio and X-ray Signatures of Merging Neutron Stars
Brad M. S. Hansen, Maxim Lyutikov
Mass Constraints of the WASP-47 Planetary System from Radial Velocities
Evan Sinukoff, Andrew W. Howard, Erik A. Petigura +19
In Situ Models for Planet Assembly around Cool stars
Brad M. S. Hansen
A Deep HST Study of the Globular Cluster NGC 6397: Reduction Methods
Jay Anderson, Ivan R. King, Harvey B. Richer +6
Three's Company: An additional non-transiting super-Earth in the bright HD 3167 system, and masses for all three planets
Jessie L. Christiansen, Andrew Vanderburg, Jennifer Burt +55
A nearby M star with three transiting super-Earths discovered by K2
Ian J. M. Crossfield, Erik Petigura, Joshua Schlieder +24
The White Dwarf Cooling Sequence of NGC6397
Brad M. S. Hansen, Jay Anderson, James Brewer +10
Gamma Ray Bursts from Stellar Collisions
Brad M. S. Hansen, Chigurupati Murali
The Dearth of Massive, Helium-Rich White Dwarfs in Young Open Star Clusters
Jasonjot Singh Kalirai, Harvey B. Richer, Brad M. S. Hansen +2
A New 24 micron Phase Curve for upsilon Andromedae b
Ian J. Crossfield, Brad M. S. Hansen, Joseph Harrington +4
Cooling Models for Old White Dwarfs
Brad M. S. Hansen
Old White Dwarf Stars with Some Hydrogen -- Cooling Curves
Eugene Y. Chen, Brad M. S. Hansen
The Masses of Population II White Dwarfs
Jason S. Kalirai, D. Saul Davis, Harvey B. Richer +4
A Spitzer Search for Infrared Excesses around Massive Young White Dwarfs
Brad M. S. Hansen, Shri Kulkarni, Sloane Wiktorowicz
Ultra-Deep Hubble Space Telescope Imaging of the Small Magellanic Cloud: The Initial Mass Function of Stars with M <~ 1 Msun
Jason S. Kalirai, Jay Anderson, Aaron Dotter +7
Re-evaluating Hot Jupiter WASP-12b: An Update
Ian J. M. Crossfield, Travis Barman, Brad M. S. Hansen +2
A Search for molecules in the atmosphere of HD 189733b
J. R. Barnes, Travis S. Barman, H. R. A. Jones +7
Halo White Dwarfs, Thick Disks and a Sanity Check
Brad M. S. Hansen
Stellar Collisions and Pulsar Planets
Brad M. S. Hansen
The Spectral Evolution of Convective Mixing White Dwarfs, the non-DA Gap, and White Dwarf Cosmochronology
Eugene Y. Chen, Brad M. S. Hansen
Searching for Variability in the Globular Cluster Messier 4
Robert D. Ferdman, Harvey B. Richer, James Brewer +11
Failed Oort Clouds and Planetary Migration
Brad M. S. Hansen
197 Candidates and 104 Validated Planets in K2's First Five Fields
Ian J. M. Crossfield, David R. Ciardi, Erik A. Petigura +41
The White Dwarf Cooling Sequence of the Globular Cluster Messier 4
Brad M. S. Hansen, James Brewer, Greg G. Fahlman +7
Stellar Evolution in NGC 6791: Mass Loss on the Red Giant Branch and the Formation of Low Mass White Dwarfs
Jasonjot S. Kalirai, P. Bergeron, Brad M. S. Hansen +4
Probing the Faintest Stars in a Globular Star Cluster
Harvey B. Richer, Jay Anderson, James Brewer +10
The Observational Signature of Old White Dwarfs
Brad M. S. Hansen
On the Spin States of Habitable Zone Exoplanets Around M Dwarfs: The Effect of a Near-Resonant Companion
Alec M. Vinson, Brad M. S. Hansen
Warm Ice Giant GJ 3470b. I. A Flat Transmission Spectrum Indicates a Hazy, Low-methane, and/or Metal-rich Atmosphere
Ian J. M. Crossfield, Travis Barman, Brad M. S. Hansen +1
Re-Evaluating WASP-12b: Strong Emission at 2.315 micron, Deeper Occultations, and an Isothermal Atmosphere
Ian J. M. Crossfield, Travis Barman, Brad M. S. Hansen +2