activity
19962023
most citedChandra X-ray Spectroscopic Imaging of Sgr A* and the Central Parsec of the Galaxy

783 citations · 11.6k across the 169 of their papers we have counts for

collaborators
Showing 2002Show all

6 papers · 1 filter

astro-ph2002★ 106 cited

Detection of TeV Gamma Rays from the BL Lac Object 1ES1959+650 with the Whipple 10m Telescope

J. Holder, VERITAS collaboration

We present the first strong detection of very high energy gamma-rays from the close (z=0.048) X-ray selected BL Lacertae object 1ES1959+650. Observations were made with the Whipple…

astro-ph2002★ 25 cited

A Chandra Spectroscopic Survey of Persistent Black Hole Candidates

W. Cui, Y. X. Feng, S. N. Zhang +3

We present results from observations of persistent black hole candidates with the High Energy Transmission Gratings aboard the Chandra X-ray Observatory. The sources include LMC X-…

astro-ph2002★ 49 cited

Why is it Difficult to Detect a Millisecond Pulsar in Neutron Star X-ray Binaries?

Lev Titarchuk, Wei Cui, Kent Wood

We explain why it is possible to detect directly X-ray emission from near the surface of the neutron star (NS) in SAX J1808.4-3658 but not in most other low-mass X-ray binaries (LM…

astro-ph2002★ 48 cited

The TeV spectrum of H1426+428

D. Petry, I. H. Bond, S. M. Bradbury +45

The BL Lac object H1426+428 was recently detected as a high energy gamma-ray source by the VERITAS collaboration (Horan et al. 2002). We have reanalyzed the 2001 portion of the dat…

astro-ph2002★ 103 cited

Discovery of Spectral Variability of Markarian 421 at TeV Energies

F. Krennrich, I. H. Bond, S. M. Bradbury +38

The detection of spectral variability of the gamma-ray blazar Mrk 421 at TeV energies is reported. Observations with the Whipple Observatory 10m gamma-ray telescope taken in 2000/2…

astro-ph2002★ 100 cited

Detection of the BL Lac Object H1426+428 at TeV Gamma Ray Energies

D. Horan

A very high energy (VHE) gamma-ray signal has been detected at the 5.4 sigma level from H1426+428, an x-ray selected BL Lacertae object at a redshift of 0.129. The object was monit…