A dataset provided by the European Space Agency

Name OT2_mboyer_1
Title Investigating the origin of the intercluster medium in M15
URL

http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342246710&instrument_name=PACS&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342246711&instrument_name=PACS&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342246712&instrument_name=PACS&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342246713&instrument_name=PACS&product_level=LEVEL0&compress=true
DOI https://doi.org/10.5270/esa-t2c8krw
Author boyer, m.
Description M15 (NGC 7078) is, quite possibly, the most unusual Galactic globular
cluster. It is among the most metal-poor clusters (Fe/H = -2.4),
yet has an extremely dusty environment. M15 is home to a dusty
planetary nebula (PN), one of only four in a globular cluster, and is
the only globular cluster with a dusty intercluster medium (ICM). Dust
is expected to collect in globular clusters when mass-losing evolved
stars eject material towards the end of their lives, but it is unclear
why only M15 has been able to retain this ICM. It is possible that the
dust originates in the Milky Way, as either swept-up or chance
superimposed material. We propose to (1) image M15 with PACS and SPIRE
to determine the ICM (and PN) dust temperature and mass, and (2)
obtain PACS line spectroscopy of C II at 158 microns to determine
whether the ICM is of Milky Way origin. These observations allow us to
probe the nature of the ICM material, determine how long it has been
collecting (or how quickly it is being removed), and rule out whether
the material is instead from the Milky Way. The results will have
broad implications for the presence of ICM in other globular clusters;
if the ICM is found to be of Galactic origin, it will significantly
weaken the case for ICM to be present in any globular cluster.
Publication
  • Chemical Abundances and Dust in the Halo Planetary Nebula K648 in M15: Its Origin and Evolution Based on an Analysis of Multiwavelength Data | Otsuka Masaaki et al. | The Astrophysical Journal Supplement Series Volume 217 Issue 2 article id. 22 25 pp. (2015). | 217 | 10.1088\\/0067-0049\\/217\\/2\\/22 | 2015ApJS..217...22O | http://adsabs.harvard.edu/abs/2015ApJS..217...22O
  • A Multi-band Catalog of 10978 Star Clusters Associations and Candidates in the Milky Way | Bica Eduardo et al. | The Astronomical Journal Volume 157 Issue 1 article id. 12 14 pp. (2019). | 157 | 10.3847\\/1538-3881\\/aaef8d | 2019AJ....157...12B | http://adsabs.harvard.edu/abs/2019AJ....157...12B
Instrument PACS_PacsPhoto_largeScan
Temporal Coverage 2012-06-07T06:49:17Z/2012-06-07T12:34:02Z
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 2012-12-07T11:08:38Z
Keywords Herschel, HSC, submillimetre, far-infrared, HIFI, PACS, SPIRE
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, boyer et al., 2012, 'Investigating the origin of the intercluster medium in M15', SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-t2c8krw