Spitzer observations of the N157B supernova remnant and its surroundings
نویسندگان
چکیده
منابع مشابه
Spitzer observations of the N157B supernova remnant and its surroundings
Aims. We study the LMC interstellar medium in the field of the nebula N157B, which contains a supernova remnant, an OB association, ionized gas, and high-density dusty filaments in close proximity. We investigate the relative importance of shock excitation by the SNR and photo-ionization by the OB stars, as well as possible interactions between the supernova remnant and its environment. Methods...
متن کاملChandra Observations of a Non-Thermal Supernova Remnant Candidate AX J1843.8−0352 and its Surroundings
We present the Chandra results of AX J1843.8−0352, a supernova remnant (SNR) recently identified with ASCA. Chandra spatially resolved two components from this SNR: non-thermal and thermal ones. The morphology of the nonthermal component is clumpy and elliptical, elongated from the north to the south with a mean diameter of about 9. The spectrum is fitted with a power-law model of photon index ...
متن کاملROSAT and ASCA Observations of the Crab-Like Supernova Remnant N157B in the Large Magellanic Cloud
We report the results of ROSAT and ASCA X-ray observations of the supernova remnant N157B (or 30 Dor B, SNR 0539-69.1) in the Large Magellanic Cloud. For comparison, we also briefly describe the results on SNR 0540-69.3, the only confirmed Crab-like remnant in the Cloud. The X-ray emission from N157B can be decomposed into a bright comet-shaped feature, superimposed on a diffuse emission region...
متن کاملDiscovery of an Ultra-fast X-ray Pulsar in the Supernova Remnant N157B
We present the serendipitous discovery of 16 ms pulsed X-ray emission from the Crab-like supernova remnant N157B in the Large Magellanic Cloud. This is the fastest spinning pulsar associated with a supernova remnant (SNR). Observations with the Rossi X-ray Timing Explorer (RXTE), centered on the field containing SN1987A, reveal an X-ray pulsar with a narrow pulse profile. Archival ASCA X-ray da...
متن کاملChandra Acis Spectroscopy of N157b — a Young Composite Supernova Remnant in a Superbubble
We present a Chandra ACIS observations of N157B, a young supernova remnant (SNR) located in the 30 Doradus star-formation region of the Large Magellanic Cloud. This remnant contains the most energetic pulsar known (J053747.39–691020.2; Ė = 4.8 × 10 ergs s), which is surrounded by a X-ray bright nonthermal nebula that likely represents a toroidal pulsar wind terminal shock observed edge-on. Two ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2009
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/200809849