324 citations
- The Ohio State UniversityUS34 papers
- Center for Astrophysics Harvard & SmithsonianUS29 papers
- Max Planck Institute for Radio AstronomyDE28 papers
- Space Telescope Science InstituteUS27 papers
- Tel Aviv UniversityIL20 papers
- University of CopenhagenDK20 papers
- European Space Astronomy CentreES19 papers
- Goddard Space Flight CenterUS18 papers
- Pennsylvania State UniversityUS18 papers
- Carnegie ObservatoriesUS17 papers
- Johns Hopkins UniversityUS17 papers
- University of PaduaIT17 papers
8 papers · 1 filter
Is there a connection between Broad Absorption Line Quasars and Narrow Line Seyfert 1 galaxies?
Dirk Grupe, John A. Nousek
We consider whether Broad Absorption Line Quasars (BAL QSOs) and Narrow Line Seyfert 1 galaxies (NLS1s) are similar, as suggested by Brandt & Gallagher (2000) and Boroson (2002). F…
On the Expansion Rate, Age, and Distance of the Supernova Remnant G266.2-1.2 (Vela Jr.)
G. E. Allen, K. Chow, T. DeLaney +4
An analysis of Chandra ACIS data for two relatively bright and narrow portions of the northwestern rim of G266.2-1.2 (a.k.a. RX J0852.0-4622 or Vela Jr.) reveal evidence of a radia…
Suzaku observations of Mrk 335: Confronting partial covering and relativistic reflection
L. C. Gallo, D. R. Wilkins, K. Bonson +7
We report on the deepest X-ray observation of the narrow-line Seyfert 1 galaxy Mrk 335 in the low-flux state obtained with Suzaku. The data are compared to a 2006 high-flux Suzaku…
A Partial Eclipse of the Heart: The Absorbed X-ray Low State in Mrk 1048
M. L. Parker, N. Schartel, S. Komossa +3
We present two new XMM-Newton observations of an unprecedented low flux state in the Seyfert 1 Mrk 1048 (NGC 985), taken in 2013. The X-ray flux below 1 keV drops by a factor of 4-…
Properties of flat-spectrum radio-loud Narrow-Line Seyfert 1 Galaxies
L. Foschini, M. Berton, A. Caccianiga +27
We have conducted a multiwavelength survey of 42 radio loud narrow-1ine Seyfert 1 galaxies (RLNLS1s), selected by searching among all the known sources of this type and omitting th…
Radio-Continuum Study of the Nearby Sculptor Group Galaxies. Part 3: NGC 7793 at lambda=12.2, 6 and 3 cm
Timothy J. Galvin, Miroslav D. Filipović, Nicholas F. H. Tothill +6
We re-examine a series of archived centimetre radio-continuum observations (lambda=16, 6 and 3 cm) focusing on NGC7793 using the Australia Telescope Compact Array. These new images…