12CO(J=1–0) and13CO(J=1–0) Mapping of the Starburst Galaxy M82
نویسندگان
چکیده
منابع مشابه
Hco + in the Starburst Galaxy M82
We report observations and an analysis of the distribution of HCO + (1-0) and HCO + (4-3) emission in the central 1 kpc star forming region of M82. Comparisons are made with other star formation indicators such as the mm continuum, the distribution of radio SNR's and the molecules CO and OH. In a broad sense, the HCO + is distributed in a way similar to the CO, although there are noticeable dif...
متن کاملThe Optical Structure of the Starburst Galaxy M82 – I: Dynamics of the Disk and Inner-wind
We present Gemini-North GMOS-IFU observations of the central starburst clumps and inner wind of M82, together with WIYN DensePak IFU observations of the inner 2× 0.9 kpc of the disk. These cover the emission lines of Hα, [N ii], [S ii], and [S iii] at a spectral resolution of 45–80 km s. The high signal-to-noise of the data is sufficient to accurately decompose the emission line profiles into m...
متن کاملThe Star Formation History of the Disk of the Starburst Galaxy M82
Spectroscopic, photometric and dynamical data of the inner 3 kpc part of the starburst galaxy M82 are analyzed in order to investigate the star formation history of its disk. The long-slit spectra along the major axis are dominated by Balmer absorption lines in the region outside the nuclear starburst all the way up to ≈ 3.5 scalelengths (μB = 22 mag arcsec ). Single Stellar Population (SSP) sp...
متن کاملSecond Epoch Global VLBI Observations of Compact Radio Sources in the M82 Starburst Galaxy
We have presented the results of a second epoch of global Very Long Baseline Interferometry observations, taken on 23 February 2001 at a wavelength of 18 cm, of the central kiloparsec of the nearby starburst galaxy Messier 82. These observations were aimed at studying the structural and flux evolution of some of the compact radio sources in the central region that have been identified as supern...
متن کاملPeculiar Chemical Abundances in the Starburst Galaxy M82 and Hypernova Nucleosynthesis
X-ray observations have shown that the chemical abundance in the starburst galaxy M82 is quite rich in Si and S compared with oxygen. Such an abundance pattern cannot be explained with any combination of conventional Type I and II supernova yields. Also the energy to heavy element mass ratio of the observed hot plasma is much higher than the value resulted from normal supernovae. We calculate e...
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of Japan
سال: 1998
ISSN: 0004-6264,2053-051X
DOI: 10.1093/pasj/50.3.309