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Chandra Observation of NGC 1559: Eight Ultraluminous X-ray Sources Including a Compact Binary Candidate
Chen-Hsun Ma, Kwan-Lok Li, You-Hua Chu +1
Despite the 30-year history of ultra-luminous X-ray sources (ULXs) studies, issues like the majority of their physical natures (i.e., neutron stars, stellar-mass black holes, or in…
Forbidden Line Emission from Type Ia Supernova Remnants Containing Balmer-Dominated Shells
Chuan-Jui Li, You-Hua Chu, John C. Raymond +3
Balmer-dominated shells in supernova remnants (SNRs) are produced by collisionless shocks advancing into a partially neutral medium, and are most frequently associated with Type Ia…
Discovery of Double-Ring Structure in the Supernova Remnant N103B: Evidence for Bipolar Winds from a Type Ia Supernova Progenitor
Hiroya Yamaguchi, Fabio Acero, Chuan-Jui Li +1
The geometric structure of supernova remnants (SNR) provides a clue to unveiling the pre-explosion evolution of their progenitors. Here we present an X-ray study of N103B (0509-68.…
SALT observations of the supernova remnant MCSNR J0127-7332 and its associated Be X-ray binary SXP 1062 in the SMC
V. V. Gvaramadze, A. Y. Kniazev, J. S. Gallagher +4
We report the results of optical spectroscopy of the Small Magellanic Cloud supernova remnant (SNR) MCSNR J0127-7332 and the mass donor Be star, 2dFS 3831, in its associated high-m…
Magnetic field estimates from the X-ray synchrotron emitting rims of the 30 Dor C superbubble and the implications for the nature of 30 Dor C's TeV emission
Patrick J. Kavanagh, Jacco Vink, Manami Sasaki +6
The 30 Dor C superbubble is unique for its synchrotron X-ray shell, as well as being the first superbubble to be detected in TeV -rays, though the dominant TeV emission mechanis…
Spatial and Spectral Modeling of the Gamma-ray Distribution in the Large Magellanic Cloud
Gary Foreman, You-Hua Chu, Robert Gruendl +3
We perform spatial and spectral analyses of the Large Magellanic Cloud (LMC) gamma-ray emission collected over 66 months by the Fermi Gamma-ray Space Telescope. In our spatial anal…
Physical Nature of the [S II]-Bright Shell Nebulae N70 and N185
Ning-Xiao Zhang, You-Hua Chu, R. M. Williams +3
N70 and N185 are two large (100 pc in diameter) shell nebulae in the Large Magellanic Cloud (LMC). Their high [\ion{S}{2}]/H ratios rival those of supernova remnants (SNRs)…
A Deep Chandra Observation of the Giant HII Region N11 I. X-ray Sources in the Field
Yael Naze, Q. Daniel Wang, You-Hua Chu +2
A very sensitive X-ray investigation of the giant HII region N11 in the LMC was performed using the Chandra X-ray Observatory. The 300ks observation reveals X-ray sources with lumi…
Four new X-ray-selected supernova remnants in the Large Magellanic Cloud
P. Maggi, F. Haberl, P. J. Kavanagh +8
Aims: We present a detailed multi-wavelength study of four new supernova remnants (SNRs) in the Large Magellanic Cloud (LMC). The objects were identified as SNR candidates in X-ray…
The Hot and Energetic Universe: A White Paper presenting the science theme motivating the Athena+ mission
Kirpal Nandra, Didier Barret, Xavier Barcons +237
This White Paper, submitted to the recent ESA call for science themes to define its future large missions, advocates the need for a transformational leap in our understanding of tw…
Giant H II Regions in M101. I. X-ray Analysis of Hot Gas
Wei Sun, Yang Chen, Li Feng +4
We performed a Chandra X-ray study of three giant H II regions (GHRs), NGC 5461, NGC 5462, and NGC 5471, in the spiral galaxy M101. The X-ray spectra of the three GHRs all contain…
Multi-frequency study of the Large Magellanic Cloud Supernova Remnant J0529-6653 near Pulsar B0529-66
L. M. Bozzetto, M. D. Filipović, E. J. Crawford +11
We report the ATCA and ROSAT detection of Supernova Remnant (SNR) J0529--6653 in the Large Magellanic Cloud (LMC) which is positioned in the projected vicinity of the known radio p…
Physical Structure of the Planetary Nebula NGC 3242 from the Hot Bubble to the Nebular Envelope
Nieves Ruiz, Martin A. Guerrero, You-Hua Chu +1
One key feature of the interacting stellar winds model of the formation of planetary nebulae (PNe) is the presence of shock-heated stellar wind confined in the central cavities of…
Nonthermal X-ray Emission from the N11 Superbubble in the Large Magellanic Cloud
L. A. Maddox, R. M. Williams, B. C. Dunne +1
We present the results of X-ray spectral analysis of the superbubble around the OB association LH9 in the H II complex N11 in the Large Magellanic Cloud. Using observations from Su…
The Very Local Universe in X-rays
A. Ptak, E. Feigelson, Y. -H. Chu +25
While the exceptional sensitivity of Chandra and XMM-Newton has resulted in revolutionary studies of the Galactic neighborhood in the soft (<10 keV) X-ray band, there are many open…