Publications (109)
Imaging X-ray, Optical, and Infrared Observations of the Transient Anomalous X-ray Pulsar XTE J1810-197
E. V. Gotthelf, J. P. Halpern, M. Buxton +1
The New Gamma-ray Pulsar PSR J2229+6114, its Pulsar Wind Nebula, and Comparison with the Vela Pulsar
J. P. Halpern, E. V. Gotthelf, F. Camilo +2
NuSTAR Discovery of a Young, Energetic Pulsar Associated with the Luminous Gamma-ray Source HESS J1640-465
E. V. Gotthelf, J. A. Tomsick, J. P. Halpern +9
The magnetar XTE J1810-197: variations in torque, radio flux density and pulse profile morphology
F. Camilo, I. Cognard, S. M. Ransom +8
Rejection of the Binary Broad-Line Region Interpretation of Double-Peaked Emission Lines in Three Active Galactic Nuclei
M. Eracleous, J. P. Halpern, A. M. Gilbert +2
Multifrequency Strategies for the Identification of Gamma-Ray Sources
R. Mukherjee, J. P. Halpern
Time-Dependent Optical Spectroscopy of GRB 010222: Clues to the GRB Environment
N. Mirabal, J. P. Halpern, S. R. Kulkarni +9
Discovery of a Highly Energetic X-ray Pulsar Powering HESS J1813-178 in the Young Supernova Remnant G12.82-0.02
E. V. Gotthelf, J. P. Halpern
CCO Pulsars as Anti-Magnetars: Evidence of Neutron Stars Weakly Magnetized at Birth
E. V. Gotthelf, J. P. Halpern
Long-Term Profile Variability of Double Peaked Emission Lines in Active Galactic Nuclei
S. Gezari, J. P. Halpern, M. Eracleous
The End of the Lines for OX 169: No Binary Broad-Line Region
J. P. Halpern, M. C. Eracleous
The Rapidly Fading Optical Afterglow of GRB 980519
J. P. Halpern, J. Kemp, T. Piran +1
Fading of the Transient Anomalous X-ray Pulsar XTE J1810-197
J. P. Halpern, E. V. Gotthelf
An Energetic Magnetar in HESS J1713-381/CTB 37B
J. P. Halpern, E. V. Gotthelf
The nature of the X-Ray Flash of August 24 2005
J. Sollerman, J. P. U. Fynbo, J. Gorosabel +23
1E 1547.0-5408: a radio-emitting magnetar with a rotation period of 2 seconds
F. Camilo, S. M. Ransom, J. P. Halpern +1
0FGL J1830.3+0617: A Fermi Blazar Near the Galactic Plane
N. Mirabal, J. P. Halpern
GRB 010921: Strong Limits on an Underlying Supernova from HST
P. A. Price, S. R. Kulkarni, B. P. Schmidt +24
X-ray Observations of Disrupted Recycled Pulsars: No Refuge for Orphaned Central Compact Objects
E. V. Gotthelf, J. P. Halpern, B. Allen +1
Discovery of 47-s pulsations in the X-ray source 1RXS J225352.8+624354
P. Esposito, G. L. Israel, L. Sidoli +5
A refined ephemeris and phase resolved X-ray spectroscopy of the Geminga pulsar
M. S. Jackson, J. P. Halpern
The proper motion of PSR J1550-5418 measured with VLBI: a second magnetar velocity measurement
A. T. Deller, F. Camilo, J. E. Reynolds +1
Proper Motion and Timing of Two Unusual Pulsars: Calvera and 1E 1207.4-5209
J. P. Halpern, E. V. Gotthelf
X-ray Observations and Infrared Identification of the Transient 7.8 s X-ray Binary Pulsar XTE J1829-098
J. P. Halpern, E. V. Gotthelf
PSR J2229+6114: Discovery of an Energetic Young Pulsar in the Error Box of the EGRET Source 3EG J2227+6122
J. P. Halpern, F. Camilo, E. V. Gotthelf +5
Detection of a supernova signature associated with GRB 011121
J. S. Bloom, S. R. Kulkarni, P. A. Price +20
Optical Lightcurve & Cooling Break of GRB 050502A
S. A. Yost, K. Alatalo, E. S. Rykoff +29
The ASCA X-Ray Spectrum of Arp 102B and Evaluation of Simple Models for Its Associated, Metastable Fe II Absorber
M. Eracleous, J. P. Halpern, J. C. Charlton
ROSAT PSPC and Hri Observations of the Composite Starburst/Seyfert 2 Galaxy NGC 1672
W. N. Brandt, J. P. Halpern, K. Iwasawa
The Ultraviolet Spectra of Active Galaxies With Double-Peaked Emission Lines
M. Eracleous, J. P. Halpern, T. Storchi-Bergmann +3
Optical Identification of the Hardest X-ray Source in the ASCA Large Sky Survey
M. Akiyama, K. Ohta, T. Yamada +9
Search for a Point-Source Counterpart of the Unidentified Gamma-Ray Source TeV J2032+4130 in Cygnus
R. Mukherjee, J. P. Halpern, E. V. Gotthelf +2
Outburst of the 2 s Anomalous X-ray Pulsar 1E 1547.0-5408
J. P. Halpern, E. V. Gotthelf, J. Reynolds +2
Optical Pulse-Phased Photopolarimetry of PSR B0656+14
B. Kern, C. Martin, B. Mazin +1
The Spectral Evolution of Transient Anomalous X-ray Pulsar XTE J1810--197
E. V. Gotthelf, J. P. Halpern
Completion of a Survey and Detailed Study of Double-Peaked Emission Lines in Radio-Loud AGNs
M. Eracleous, J. P. Halpern
Spin-down Measurement of PSR J1852+0040 in Kesteven 79: Central Compact Objects as Anti-Magnetars
J. P. Halpern, E. V. Gotthelf
Discovery of a new TeV gamma-ray source: VER J0521+211
VERITAS Collaboration, S. Archambault, T. Arlen +83
GRB 060218/SN 2006aj: A Gamma-Ray Burst and Prompt Supernova at z=0.0335
N. Mirabal, J. P. Halpern, D. An +2
On the Origin of TeV Gamma-ray Emission from HESS J1834-087
R. Mukherjee, E. V. Gotthelf, J. P. Halpern
The First Observations of the Second Brightest Quasar
K. M. Leighly, J. P. Halpern, D. J. Helfand +2
The Vela Pulsar and its Synchrotron Nebula
D. J. Helfand, E. V. Gotthelf, J. P. Halpern
An RXTE Observation of NGC 6300: a new bright Compton reflection Dominated Seyfert 2 Galaxy
K. M. Leighly, J. P. Halpern, H. Awaki +3
Discovery of Radio Emission from Transient Anomalous X-ray Pulsar XTE J1810-197
J. P. Halpern, E. V. Gotthelf, R. H. Becker +2
GRB 021004: A Possible Shell Nebula around a Wolf-Rayet Star Gamma-Ray Burst Progenitor
N. Mirabal, J. P. Halpern, Ryan Chornock +7
EUVE J0425.6-5714: A Newly Discovered AM Herculis Star
J. P. Halpern, K. M. Leighly, H. L. Marshall +2
X-ray Timing of PSR J1852+0040 in Kesteven 79: Evidence of Neutron Stars Weakly Magnetized at Birth
J. P. Halpern, E. V. Gotthelf, F. Camilo +1
The variable radio-to-X-ray spectrum of the magnetar XTE J1810-197
F. Camilo, S. M. Ransom, J. Penalver +9
Discovery of a millisecond pulsar in the 5.4 day binary 3FGL J1417.5-4402: observing the late phase of pulsar recycling
F. Camilo, J. E. Reynolds, S. M. Ransom +8
The Faint Optical Afterglow and Host Galaxy of GRB 020124: Implications for the Nature of Dark Gamma-Ray Bursts
E. Berger, S. R. Kulkarni, J. S. Bloom +24
Transient X-ray sources in the field of the Unidentified Gamma-Ray Source TeV J2032+4130 in Cygnus
R. Mukherjee, E. V. Gotthelf, J. P. Halpern
The Anatomy of a Magnetar: XMM Monitoring of the Transient Anomalous X-ray Pulsar XTE J1810-197
E. V. Gotthelf, J. P. Halpern
Discovery of the Putative Pulsar and Wind Nebula Associated with the TeV Gamma-ray Source HESS J1813-178
D. J. Helfand, E. V. Gotthelf, J. P. Halpern +4
Radio disappearance of the magnetar XTE J1810-197 and continued X-ray timing
F. Camilo, S. M. Ransom, J. P. Halpern +6
Discovery of the Ultra-Bright Type II-L Supernova 2008es
S. Gezari, J. P. Halpern, D. Grupe +12
E 0336-248 : A New BL Lac Object Found by an Old Einstein
J. P. Halpern, M. Eracleous, K. Forster
Optical Studies of Thirteen Hard X-ray Selected Cataclysmic Binaries from the Swift-BAT Survey
J. P. Halpern, J. R. Thorstensen
X-ray Radiation from the Millisecond Pulsar J0437-4715
V. E. Zavlin, G. G. Pavlov, D. Sanwal +4
Gamma-Ray Emission from Two Blazars Behind the Galactic Plane: B2013+370 & B2023+336
E. Kara, M. Errando, W. Max-Moerbeck +7
The magnetar 1E 1547.0-5408: radio spectrum, polarimetry, and timing
F. Camilo, J. Reynolds, S. Johnston +2
The Next Geminga: Deep Multiwavelength Observations of a Neutron Star Identified with 3EG J1835+5918
J. P. Halpern, E. V. Gotthelf, N. Mirabal +1
Are There Any Type 2 QSOs? The Case of AXJ0341.4-4453
J. P. Halpern, T. J. Turner, I. M. George
Follow-Up HST/STIS Spectroscopy of Three Candidate Tidal Disruption Events
S. Gezari, J. P. Halpern, S. Komossa +2
Chandra Detection of a Synchrotron Nebula Around the Vela-like Pulsar J1016-5857
F. Camilo, B. M. Gaensler, E. V. Gotthelf +2
3EG J2016+3657: Confirming an EGRET Blazar Behind the Galactic Plane
J. P. Halpern, M. Eracleous, R. Mukherjee +1
Ultraviolet Detection of the Tidal Disruption of a Star by a Supermassive Black Hole
S. Gezari, D. C. Martin, B. Milliard +10
A Neutron-Star Identification for the High-Energy Gamma-ray Source 3EG J1835+5918 Detected in the ROSAT All-Sky Survey
N. Mirabal, J. P. Halpern
The Spin-down of PSR J0821-4300 and PSR J1210-5226: Confirmation of Central Compact Objects as Anti-Magnetars
E. V. Gotthelf, J. P. Halpern, J. Alford
Multiwavelength Observations of the Redback Millisecond Pulsar J1048+2339
J. S. Deneva, P. S. Ray, F. Camilo +9
UV/Optical Detections of Candidate Tidal Disruption Events by GALEX and CFHTLS
S. Gezari, S. Basa, D. C. Martin +11
Was the X-ray Afterglow of GRB 970815 Detected?
N. Mirabal, J. P. Halpern, E. V. Gotthelf +1
Spin-Down Measurement of PSR J1813-1749: The Energetic Pulsar Powering HESS J1813-178
J. P. Halpern, E. V. Gotthelf, F. Camilo
X-ray Measurement of the Spin-Down of Calvera: a Radio- and Gamma-ray-Quiet Pulsar
J. P. Halpern, S. Bogdanov, E. V. Gotthelf
Discovery of High-Energy Gamma-Ray Pulsations from PSR J2021+3651 with AGILE
J. P. Halpern, F. Camilo, A. Giuliani +7
Modeling the Surface X-ray Emission and Viewing Geometry of PSR J0821-4300 in Puppis A
E. V. Gotthelf, R. Perna, J. P. Halpern
Search for the Identification of 3EG J1835+5918: Evidence for a New Type of High-Energy Gamma-ray Source
N. Mirabal, J. P. Halpern, M. Eracleous +1
Discovery of a Young, Energetic 70.5 ms Pulsar Associated with the TeV Gamma-ray Source HESS J1837-069
E. V. Gotthelf, J. P. Halpern
Evolution of the Nuclear Accretion Disk Emission in NGC 1097: Getting Closer to the Black Hole
T. Storchi-Bergmann, R. Nemmen, M. Eracleous +5
Discovery of an Energetic 38.5 ms Pulsar Powering the Gamma-ray Source IGR J18490-0000/HESS J1849-000
E. V. Gotthelf, J. P. Halpern, R. Terrier +1
The X-ray Afterglow of Dark GRB 970815: A Common Origin for GRBs and XRFs?
N. Mirabal, J. P. Halpern, E. V. Gotthelf +1
VLBA measurement of the transverse velocity of the magnetar XTE J1810-197
D. J. Helfand, S. Chatterjee, W. F. Brisken +5
Discovery of a 136 millisecond radio and X-ray pulsar in SNR G54.1+0.3
F. Camilo, D. R. Lorimer, N. D. R. Bhat +5
Detection of Pulsed X-ray Emission from PSR B1706-44
E. V. Gotthelf, J. P. Halpern, R. Dodson
New X-ray Constraints on Starburst and Seyfert Activity in the Barred Spiral Galaxy NGC 1672
P. J. de Naray, W. N. Brandt, J. P. Halpern +1
Discovery of a 112 ms X-ray Pulsar in Puppis A: Further Evidence of Neutron Stars Weakly Magnetized at Birth
E. V. Gotthelf, J. P. Halpern
An AGN Identification for 3EG J2006-2321
P. M. Wallace, J. P. Halpern, A. M. Magalhaes +1
Exploring Broadband GRB Behavior During gamma-ray Emission
S. A. Yost, H. F. Swan, E. S. Rykoff +44
Chandra Observation of the Unidentified TeV Gamma-Ray Source HESS J1303-631 in the Galactic Plane
R. Mukherjee, J. P. Halpern
GRB 021004: A Possible Shell Nebula around a Wolf-Rayet Star Gamma-Ray Burst Progenitor
N. Mirabal, J. P. Halpern, R. Chornock +2
Polarized radio emission from the magnetar XTE J1810-197
F. Camilo, J. Reynolds, S. Johnston +3
Radio detection of LAT PSRs J1741-2054 and J2032+4127: no longer just gamma-ray pulsars
F. Camilo, P. S. Ray, S. M. Ransom +24
X-ray, Radio, and Optical Observations of the Putative Pulsar in the Supernova Remnant CTA 1
J. P. Halpern, E. V. Gotthelf, F. Camilo +2
An Extreme Ultraviolet Explorer Atlas of Seyfert Galaxy Light Curves: Search for Periodicity
J. P. Halpern, K. M. Leighly, H. L. Marshall
Discovery of X-ray Pulsations from the INTEGRAL Source IGR J11014-6103
J. P. Halpern, J. A. Tomsick, E. V. Gotthelf +6
Optical and X-Ray Observations of GRB 060526: A Complex Afterglow Consistent with An Achromatic Jet Break
X. Dai, J. P. Halpern, N. D. Morgan +5
GRB 050826: A Subluminous Event at z = 0.296 Finds its Place in the Luminosity Distribution of Gamma-Ray Burst Afterglows
N. Mirabal, J. P. Halpern, P. T. O'Brien
Precise Timing of the X-ray Pulsar 1E 1207.4-5209: A Steady Neutron Star Weakly Magnetized at Birth
E. V. Gotthelf, J. P. Halpern
A Possible X-ray and Radio Counterpart of the High-Energy Gamma-ray Source 3EG J2227+6122
J. P. Halpern, E. V. Gotthelf, K. M. Leighly +1
GRB 991216 Joins the Jet Set: Discovery and Monitoring of its Optical Afterglow
J. P. Halpern, R. Uglesich, N. Mirabal +8
Two Magnetar Candidates in HESS Supernova Remnants
J. P. Halpern, E. V. Gotthelf