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Mapping the interstellar medium in galaxies with Herschel/SPIRE
(2010-07-01)
The standard method of mapping the interstellar medium in a galaxy, by observing the molecular gas in the CO 1-0 line and the atomic gas in the 21-cm line, is largely limited with current telescopes to galaxies in the ...
Probing the molecular interstellar medium of M82 with Herschel-SPIRE spectroscopy
(2010-07-01)
We present the observations of the starburst galaxy M82 taken with the Herschel SPIRE Fourier-transform spectrometer. The spectrum (194–671 μm) shows a prominent CO rotational ladder from J = 4–3 to 13–12 emitted by the ...
SPIRE imaging of M 82 : Cool dust in the wind and tidal streams
(2010-07-01)
M 82 is a unique representative of a whole class of galaxies, starbursts with superwinds, in the Very Nearby Galaxy Survey with Herschel. In addition, its interaction with the M 81 group has stripped a significant portion ...
Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705
(2010-07-01)
We present Herschel SPIRE and PACS photometeric observations of the low metallicity (Z ~ 0.35ΖΘ ) nearby dwarf galaxy, NGC 1705, in six wavelength bands as part of the Dwarf Galaxy Survey guaranteed time Herschel key ...
Herschel photometric observations of the nearby low metallicity irregular galaxy NGC 6822
(2010-07-01)
We present the first Herschel PACS and SPIRE images of the low-metallicity galaxy NGC 6822 observed from 70 to 500 μm and clearly resolve the H ii regions with PACS and SPIRE. We find that the ratio 250/500 is dependent ...
The central region of spiral galaxies as seen by Herschel. M 81, M 99, and M 100
(2010-07-01)
With appropriate spatial resolution, images of spiral galaxies in thermal infrared (~10 micron and beyond) often reveal a bright central component, distinct from the stellar bulge, superimposed on a disk with prominent ...