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researcher

D. J. Helfand

4 papers here

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • middle author4

Across the 4 of 4 papers where every author was matched, so the position is known.

fields
  • astro-ph4
ORCID 0000-0002-6822-4823

identity via Semantic Scholar / OpenAlex

activity
19982005
most citedNew Constraints on Neutron Star Cooling from Chandra Observations of 3C58

140 citations · 392 across the 4 of their papers we have counts for

collaborators

4 papers

astro-ph2005★ 92 cited

Discovery of Radio Emission from Transient Anomalous X-ray Pulsar XTE J1810-197

J. P. Halpern, E. V. Gotthelf, R. H. Becker +2

We report the first detection of radio emission from any anomalous X-ray pulsar (AXP). Data from the Very Large Array (VLA) MAGPIS survey with angular resolution 6" reveals a point…

astro-ph2002★ 140 cited

New Constraints on Neutron Star Cooling from Chandra Observations of 3C58

Patrick Slane, David J. Helfand, Stephen S. Murray

3C58 is a young Crab-like supernova remnant. Historical evidence strongly suggests an association of the remnant with supernova SN 1181, which would make 3C58 younger than the Crab…

astro-ph2001★ 125 cited

The Reddest Quasars

Michael D. Gregg, Mark Lacy, Richard L. White +4

In a survey of quasar candidates selected by matching the FIRST and 2MASS catalogs, we have found two extraordinarily red quasars. FIRST J013435.7-093102 is a 1 Jy source at z=2.21…

astro-ph1998★ 35 cited

The Host Galaxy of the Gamma--Ray Burst 971214

S. C. Odewahn, S. G. Djorgovski, S. R. Kulkarni +13

We report on Hubble Space Telescope (HST) observations of the host galaxy of GRB 971214, about four months after the burst. The redshift of the proposed host galaxy at z=3.418, com…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.