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 · 2 filters
Lifting the curtain: The Seyfert galaxy Mrk 335 emerges from deep low-state in a sequence of rapid flare events
S. Komossa, D. Grupe, L. C. Gallo +7
The narrow-line Seyfert 1 galaxy Mrk 335 was one of the X-ray brightest AGN, but it has systematically faded since 2007. Here, we report the discovery with Swift of a sequence of b…
New Optically Identified Supernova Remnants in the Large Magellanic Cloud
Miranda Yew, Miroslav D. Filipović, Milorad Stupar +20
We present a new optical sample of three Supernova Remnants and 16 Supernova Remnant (SNR) candidates in the Large Magellanic Cloud(LMC). These objects were originally selected usi…
Tracking the year-to-year variation in the spectral energy distribution of the Narrow-line Seyfert 1 Galaxy Mrk335
S. Tripathi, K. M. McGrath, L. C. Gallo +5
Multi-wavelength monitoring of Mrk 335 with Swift between 2007-2019 are used to construct annual spectral energy distributions and track year-to-year changes. Non-contemporaneous a…
ASASSN-14ko is a Periodic Nuclear Transient in ESO 253-G003
Anna V. Payne, Benjamin J. Shappee, Jason T. Hinkle +24
We present the discovery that ASASSN-14ko is a periodically flaring AGN at the center of the galaxy ESO 253-G003. At the time of its discovery by the All-Sky Automated Survey for S…
Uncovering the primary X-ray emission and possible starburst component in the polarized NLS1 Mrk 1239
Margaret Z. Buhariwalla, Sophia G. H. Waddell, Luigi C. Gallo +2
X-ray observations of the unique NLS1 galaxy Mrk 1239 spanning 18-years are presented. Data from XMM-Newton, Suzaku, Swift and NuSTAR are combined to obtain a broad-band, multi-epo…
Discovery of recombining plasma associated with the candidate supernova remnant G189.6+3.3 with Suzaku
Shigeo Yamauchi, Moe Oya, Kumiko K. Nobukawa +1
We present the results of an X-ray spectral analysis of the northeast region of the candidate supernova remnant G189.6+3.3 with Suzaku. K-shell lines from highly ionized Ne, Mg, Si…