A dataset provided by the European Space Agency

Name OT1_mvenezia_1
Title Characterizing the structure of an unusually cold high latitude cloud


DOI https://doi.org/10.5270/esa-3s8o7en
Author European Space Agency
Description We propose a PACS and SPIRE photometric observation at
100, 160, 250, 350 and 500 micron to study an unusually
cold cloud detected by the BOOMERanG experiment at high
galactic latitudes (b = -31 deg). This cloud has a temperature
of T = 7 +- 3 K and this measurement is confirmed also by
Planck-HFI data. Even if the temperature is so low, other
properties are not that extreme: it has normal HI column
density, gas-to dust ratio and no molecular material. A closer
look at 100 micron shows, at 4. resolution, a wealth of
brighter clumps embedded in the cloud that could be mostly
molecular, hence hidden from the large beam HI and CO
surveys. They can be pre-stellar cores and this would explain
the low temperature. We propose to map a 30.x30. area
centered on the cloud to study the substructure and the
composition of that region. The observation with the Herschel
angular resolution and band coverage will improve the
knowledge of the early stages of star formation and of the
structure and composition of the interstellar medium at tens
of arcseconds angular scale. This is particularly interesting
as the region is located at high latitudes, in an area that is
supposed to be poor of star formation activity.
With Herschel data we will be able to characterize the
properties of the clumps and of the dust around, like temperature,
spectral index, mass and density in order to better determine
the physical processes occurring in this region and
structure and substructures composition.
Instrument PACS_PacsPhoto_largeScan, SPIRE_SpirePhoto_large
Temporal Coverage 2011-07-21T17:48:31Z/2011-08-16T14:08:51Z
Version SPG v14.2.0
Mission Description Herschel was launched on 14 May 2009! It is the fourth 'cornerstone' mission in the ESA science programme. With a 3.5 m Cassegrain telescope it is the largest space telescope ever launched. It is performing photometry and spectroscopy in approximately the 55-671 µm range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/h®erschel/
Date Published 2012-02-16T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2012, Characterizing The Structure Of An Unusually Cold High Latitude Cloud, SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-3s8o7en