935 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National Radio Astronomy ObservatoryUS84 papers
- Columbia UniversityUS76 papers
- University of ManchesterGB71 papers
- Cornell UniversityUS65 papers
- Max Planck Institute for Radio AstronomyDE53 papers
- West Virginia UniversityUS53 papers
- Commonwealth Scientific and Industrial Research OrganisationAU51 papers
- University of British ColumbiaCA47 papers
- Australia Telescope National FacilityAU45 papers
- McGill UniversityCA43 papers
- University of AmsterdamNL39 papers
- Netherlands Institute for Radio AstronomyNL37 papers
147 papers · 1 filter
Fermi LAT Observations of the Vela Pulsar
A. A. Abdo
The Vela pulsar is the brightest persistent source in the GeV sky and thus is the traditional first target for new gamma-ray observatories. We report here on initial Fermi Large Ar…
The Disruption and Fueling of M33
M. E. Putman, J. E. G. Peek, A. Muratov +7
The disruption of the M33 galaxy is evident from its extended gaseous structure. We present new data from the Galactic Arecibo L-Band Feed Array HI (GALFA-HI) Survey that show the…
Arecibo Pulsar Survey Using ALFA: Probing Radio Pulsar Intermittency and Transients
J. S. Deneva, J. M. Cordes, M. A. McLaughlin +23
We present radio transient search algorithms, results, and statistics from the ongoing Arecibo Pulsar ALFA (PALFA) Survey of the Galactic plane. We have discovered seven objects by…
LCDM Satellites and HI Companions - The Arecibo ALFA Survey of NGC 2903
J. A. Irwin, G. L. Hoffman, K. Spekkens +11
We have conducted a deep, complete HI survey, using Arecibo/ALFA, of a field centered on the nearby, isolated galaxy, NGC 2903, which is similar to the Milky Way in its properties.…
Pulsar Timing for the Fermi Gamma-ray Space Telescope
D. A. Smith, L. Guillemot, F. Camilo +25
We describe a comprehensive pulsar monitoring campaign for the Large Area Telescope (LAT) on the {\em Fermi Gamma-ray Space Telescope} (formerly GLAST). The detection and study of…
A Pilot Survey of HI in Field Galaxies at Redshift z~0.2
Barbara Catinella, Martha P. Haynes, Riccardo Giovanelli +2
We present the first results of a targeted survey carried out with the 305 m Arecibo telescope to detect HI-line emission from galaxies at redshift z>0.16. The targets, selected fr…
A 500 kpc HI Extension of the Virgo Pair NGC4532/DDO137 Detected by the Arecibo Legacy Fast ALFA (ALFALFA) Survey
R. A. Koopmann, R. Giovanelli, M. P. Haynes +6
We report the discovery of a ~500 kpc HI extension southwest of the Virgo Cluster HI-rich pair NGC 4532/DDO 137, detected as part of the Arecibo Legacy Fast ALFA (ALFALFA) Survey.…
PSR J1856+0245: Arecibo Discovery of a Young, Energetic Pulsar Coincident with the TeV Gamma-ray Source HESS J1857+026
J. W. T. Hessels, D. J. Nice, B. M. Gaensler +21
We present the discovery of the Vela-like radio pulsar J1856+0245 in the Arecibo PALFA survey. PSR J1856+0245 has a spin period of 81ms, a characteristic age of 21kyr, and a spin-d…
VLA and VLBA Observations of the Highest Redshift Radio-Loud QSO J1427+3312 at z = 6.12
E. Momjian, C. L. Carilli, I. D. McGreer
We present 8.4 GHz VLA A-array and 1.4 GHz VLBA results on the radio continuum emission from the highest redshift radio-loud quasar known to date, the QSO J1427+3312. The…
The Arecibo Arp 220 Spectral Census I: Discovery of the Pre-Biotic Molecule Methanimine and New Cm-wavelength Transitions of Other Molecules
C. J. Salter, T. Ghosh, B. Catinella +4
An on-going Arecibo line search between 1.1 and 10 GHz of the prototypical starburst/megamaser galaxy, Arp 220, has revealed a spectrum rich in molecular transitions. These include…
Mapping Hydrogen in the Galaxy, Galactic Halo, and Local Group with ALFA: The GALFA-HI Survey Starting with TOGS
S. J. Gibson, K. A. Douglas, C. Heiles +4
Radio observations of gas in the Milky Way and Local Group are vital for understanding how galaxies function as systems. The unique sensitivity of Arecibo's 305m dish, coupled with…
Dynamics of Kicked and Accelerated Massive Black Holes in Galaxies
David A. Kornreich, Richard V. E. Lovelace
A study is made of the behavior of massive black holes in disk galaxies that have received an impulsive kick from a merger or a sustained acceleration from an asymmetric jet. The m…
A Massive Neutron Star in the Globular Cluster M5
Paulo C. C. Freire, Alex Wolszczan, Maureen van den Berg +1
We report the results of 19 years of Arecibo timing for two pulsars in the globular cluster NGC 5904 (M5), PSR B1516+02A (M5A) and PSR B1516+02B (M5B). This has resulted in the mea…
Super-Massive Neutron Stars
Paulo C. C. Freire
We present here the results of Arecibo timing of PSR B1516+02B, a 7.95-ms pulsar in a binary system with a ~0.17 solar mass companion and an orbital period of 6.85 days located in…
Eight new MSPs in NGC 6440 and NGC 6441
Paulo C. C. Freire, Scott M. Ransom, Steve Begin +4
We report the discovery of five new millisecond pulsars in the globular cluster NGC 6440 and three new ones in NGC 6441; each cluster has one previously known pulsar. Four of the n…
The Eccentric Binary Millisecond Pulsar in NGC 1851
Paulo C. C. Freire, Scott M. Ransom, Yashwant Gupta
PSR J0514-4002A is a 5-ms pulsar is located in the globular cluster NGC 1851; it belongs to a highly eccentric (e = 0.888) binary system. It is one of the earliest known examples o…
Eight New Millisecond Pulsars in NGC 6440 and NGC 6441
Paulo C. C. Freire, Scott M. Ransom, Steve Begin +4
Motivated by the recent discovery of 30 new millisecond pulsars in Terzan 5, made using the Green Bank Telescope's S-band receiver and the Pulsar Spigot spectrometer, we have set o…
The ALFA Zone of Avoidance Survey: Results from the Precursor Observations
C. M. Springob, P. A. Henning, B. Catinella +11
The Arecibo L-band Feed Array Zone of Avoidance Survey (ALFA ZOA) will map 1350-1800 square degrees at low Galactic latitude, providing HI spectra for galaxies in regions of the sk…
A 1.4-GHz Arecibo Survey for Pulsars in Globular Clusters
J. W. T. Hessels, S. M. Ransom, I. H. Stairs +2
We have surveyed all 22 known Galactic globular clusters observable with the Arecibo radio telescope and within 70kpc of the Sun for radio pulsations at ~1.4GHz. Data were taken wi…
21-cm synthesis observations of VIRGOHI 21 - a possible dark galaxy in the Virgo Cluster
Robert Minchin, Jonathan Davies, Michael Disney +10
Many observations indicate that dark matter dominates the extra-galactic Universe, yet no totally dark structure of galactic proportions has ever been convincingly identified. Prev…
Discovery of new faint radio emission on 8$\arcdeg$ to 3$\arcmin$ scales in the Coma field, and some Galactic and extragalactic implications
P. P. Kronberg, R. Kothes, C. J. Salter +1
We present a deep, 8$\degr$ diameter, 0.4 GHz radio image using a first time combination of the NAIC Arecibo 305-m telescope in Puerto Rico, and the wide-angle interferometer at th…
Rotational Widths for Use in the Tully-Fisher Relation. II. The Impact of Surface Brightness
Barbara Catinella, Martha P. Haynes, Riccardo Giovanelli
Using a large sample of spiral galaxies for which 21 cm single-dish and/or long-slit optical spectra are available, we make a detailed comparison between various estimates of rotat…
Cold HI in Turbulent Eddies and Galactic Spiral Shocks
Steven J. Gibson, A. Russell Taylor, Jeroen M. Stil +3
HI 21cm-line self-absorption (HISA) reveals the shape and distribution of cold atomic clouds in the Galactic disk. Many of these clouds lack corresponding CO emission, despite bein…
Multiscale Structure in Dust Reflection and Cold HI
Steven J. Gibson
I present 2-D angular power spectra of cold HI emission and optical dust reflection tracing the HI in the Pleiades reflection nebula. This analysis reveals a uniform power-law slop…