Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Edward C. Moran"'
Publikováno v:
The Astrophysical Journal. 668:L31-L34
We have discovered an extremely broad, double-peaked H-alpha emission line in the polarized flux spectrum of NGC 2110, establishing that this well-studied Seyfert 2 galaxy contains a disk-like hidden broad-line region (BLR). Several properties of NGC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f344d5f11e39fb50b5ad5d7afa1a6fb5
https://doi.org/10.1086/522697
https://doi.org/10.1086/522697
Autor:
William Herbst, Edward C. Moran
Publikováno v:
The Astrophysical Journal. 630:400-404
The unique eclipsing, weak-lined T Tauri star KH 15D has been detected as an X-ray source in a 95.7 ks exposure from the Chandra X-ray Observatory archives. A maximum X-ray luminosity of 1.5 x 10^{29} erg s$^{-1}$ is derived in the 0.5--8 keV band, c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a84f8360d5c90a38974963d3817d23c0
https://doi.org/10.1086/432251
https://doi.org/10.1086/432251
Publikováno v:
The Astronomical Journal. 124:3465-3477
We present a study of the X-ray properties of a volume-limited sample of optically selected emission-line galaxies. The sample is derived from a correlation between the KPNO International Spectroscopic Survey (KISS), an H-alpha-selected objective-pri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f37da22d84cf8c9b8816a960cc3c3b99
https://doi.org/10.1086/344680
https://doi.org/10.1086/344680
Autor:
James R. Graham, K. L. Wu, Alison L. Coil, Steve Dawson, Fiona A. Harrison, Andrew J. Connolly, Peter H. Mao, Richard Elston, Arjun Dey, S. A. Stanford, David J. Helfand, Daniel Stern, Edward C. Moran, Marc Davis, Paolo Tozzi, Piero Rosati, Hyron Spinrad, Peter Eisenhardt, Brad Holden
Publikováno v:
The Astrophysical Journal. 568:71-81
We report on observations of a TypeII quasar at redshift z=3.288, identified as a hard X-ray source in a 185 ks observation with the Chandra X-ray Observatory and as a high-redshift photometric candidate from deep, multiband optical imaging. CXOJ0848
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec8c7cd8b7bbce941b6d2c74acc6772e
https://doi.org/10.1086/338886
https://doi.org/10.1086/338886
Autor:
Edward C. Moran, Jules P. Halpern
Publikováno v:
The Astrophysical Journal. 494:194-201
We analyze new optical spectra of IRAS 20181-2244 that confirm its classification as a I Zw 1 object (or narrow-line Seyfert 1 galaxy), one of 20 such objects detected in the ROSAT/IRAS all-sky survey. ASCA X-ray data on IRAS 20181-2244 support this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8c2e48c18e20780725a5e1c950b8791
https://doi.org/10.1086/305202
https://doi.org/10.1086/305202
Autor:
David J. Helfand, Edward C. Moran
Publikováno v:
The Astrophysical Journal. 484:L95-L98
We present a high-quality X-ray spectrum in the 3-53 keV rest frame band of the radio-loud quasar 1508+5714, which is by far the brightest known X-ray source at z > 4. A simple power-law model with an absorption column density equal to the Galactic v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d62a391be1da06ee56977ceccbba963f
https://doi.org/10.1086/310787
https://doi.org/10.1086/310787
Autor:
Matthew D. Lehnert, Edward C. Moran
Publikováno v:
The Astrophysical Journal. 478:172-181
The broadband X-ray spectrum of the prototypical starburst galaxy M82 is very complex. At least three spectral components are required to fit the combined ROSAT and ASCA spectrum in the 0.1--10 keV range. The observed X-ray flux in this band is domin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5237602df401d2ebbc852578a3012382
https://doi.org/10.1086/303795
https://doi.org/10.1086/303795
Autor:
Edward C. Moran
Publikováno v:
New Astronomy Reviews. 44:527-529
While NLS1s have been studied intensively at X-ray and optical wavelengths, comparatively little is known about their characteristics in the radio band. Therefore, we have carried out an investigation of the radio luminosities, source sizes, spectral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0f50edf0a22bcda46d0f54933d547de
https://doi.org/10.1016/s1387-6473(00)00092-0
https://doi.org/10.1016/s1387-6473(00)00092-0
Autor:
Daniel Stern, Edward C. Moran
Publikováno v:
The Mass of Galaxies at Low and High Redshift ISBN: 3540002057
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60a5250b9c81c4104d8e40a04d2da7b8
https://doi.org/10.1007/10899892_39
https://doi.org/10.1007/10899892_39
Autor:
Luis C. Ho, Shai Kaspi, Richard W. Pogge, Alexei V. Filippenko, Louis-Benoit Desroches, Alice C. Quillen, Ari Laor, Bradley M. Peterson, Misty C. Bentz, Dan Maoz, Edward C. Moran
A reverberation-mapping program on NGC 4395, the least-luminous known Seyfert 1 galaxy, undertaken with the Space Telescope Imaging Spectrograph on the Hubble Space Telescope, yields a measurement of the mass of the central black hole of 360,000 sola
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf5ac856aa6de2e108f689276ba3e34d
http://arxiv.org/abs/astro-ph/0506665
http://arxiv.org/abs/astro-ph/0506665