557 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Goddard Space Flight CenterUS13 papers
- Argonne National LaboratoryUS12 papers
- Columbia UniversityUS12 papers
- Center for Astrophysics Harvard & SmithsonianUS11 papers
- Northwestern UniversityUS10 papers
- University of VirginiaUS10 papers
- Space Telescope Science InstituteUS9 papers
- Stockholm UniversitySE8 papers
- University of Notre DameUS8 papers
- Sam Houston State UniversityUS7 papers
- University of TorontoCA7 papers
- Australian National UniversityAU6 papers
11 papers · 1 filter
Galactic Edge Clouds I: Molecular Line Observations and Chemical Modelling of Edge Cloud 2
P. M. E. Ruffle, T. J. Millar, H. Roberts +5
Edge Cloud 2 (EC2) is a molecular cloud, about 35 pc in size, with one of the largest galactocentric distances known to exist in the Milky Way. We present observations of a peak CO…
The Expansion Asymmetry and Age of the Cassiopeia A Supernova Remnant
R. A. Fesen, M. C. Hammell, J. Morse +7
HST ACS images of the young SN remnant Cas A are used to explore the expansion and spatial distribution of its highest velocity debris. Proper motions of over 1800 outlying ejecta…
Evolution of the Reverse Shock Emission from SNR 1987A
Kevin Heng, Richard McCray, Svetozar A. Zhekov +13
We present new (2004 July) G750L and G140L Space Telescope Imaging Spectrograph (STIS) data of the H-alpha and Ly-alpha emission from supernova remnant (SNR) 1987A. With the aid of…
Discovery of Outlying, High-Velocity Oxygen-Rich Ejecta in Cassiopeia A
R. A. Fesen, M. C. Hammell, J. Morse +7
Hubble Space Telescope images of the young Galactic supernova remnant Cassiopeia A reveal a far larger population of outlying, high-velocity knots of ejecta with a broader range of…
The kinetic temperature of a molecular cloud at redshift 0.7: Ammonia in the gravitational lens B0218+357
C. Henkel, N. Jethava, A. Kraus +6
Using the Effelsberg 100-m telescope, absorption in the (J,K) = (1,1), (2,2) and (3,3) inversion lines of ammonia (NH_3) was detected at a redshift of z = 0.6847 toward the gravita…
The Three-Dimensional Circumstellar Environment of SN 1987A
Ben E. K. Sugerman, Arlin P. S. Crotts, William E. Kunkel +2
We present the detailed construction and analysis of the most complete map to date of the circumstellar environment around SN 1987A, using ground and space-based imaging from the p…
A New View of the Circumstellar Environment of SN 1987A
Ben E. K. Sugerman, Arlin P. S. Crotts, William E. Kunkel +2
We summarize the analysis of a uniform set of both previously-known and newly-discovered scattered-light echoes, detected within 30" of SN 1987A in ten years of optical imaging, an…
Grid-based simulation program for gravitational wave interferometers with realistically imperfect optics
Brett Bochner, Yaron Hefetz
We describe an optical simulation program that models a complete, coupled-cavity interferometer like those used by the Laser Interferometer Gravitational-Wave Observatory (LIGO) Pr…
Simulating a dual-recycled gravitational wave interferometer with realistically imperfect optics
Brett Bochner
We simulate the performance of a gravitational wave interferometer in the Dual Recycling (DR) configuration, as will be used for systems like Advanced-LIGO. Our grid-based simulati…
Evolution and Geometry of Hot Spots in Supernova Remnant 1987A
Ben E. K. Sugerman, Stephen S. Lawrence, Arlin P. S. Crotts +2
We present ground-based near-infrared imaging and {\em HST} optical imaging and spectroscopy of the interaction between the ejecta of SN 1987A and its equatorial circumstellar ring…
Hubble Space Telescope WFPC-2 Imaging of Cassiopeia A
Robert A. Fesen, Jon A. Morse, Roger A. Chevalier +4
The young SNR Cassiopeia A was imaged with WFPC-2 through four filters selected to capture the complete velocity range of the remnant's main shell in several important emission lin…