A dataset provided by the European Space Agency

Name OT2_pbjerkel_1
Title Herschel observations of the shocked gas in HH54
URL

http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342248309&instrument_name=HIFI&product_level=LEVEL0&compress=true
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http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342248309&instrument_name=SPIRE&product_level=LEVEL0&compress=true
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http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342250484&instrument_name=PACS&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342250484&instrument_name=SPIRE&product_level=LEVEL0&compress=true
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http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342251604&instrument_name=HIFI&product_level=LEVEL0&compress=true
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http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342251604&instrument_name=SPIRE&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342257933&instrument_name=HIFI&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342257933&instrument_name=PACS&product_level=LEVEL0&compress=true
http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342257933&instrument_name=SPIRE&product_level=LEVEL0&compress=true

DOI https://doi.org/10.5270/esa-9fd672u
Author European Space Agency
Description A shock that can be studied in detail, using a very limited amount of
Herschel time, is the Herbig-Haro object HH54 located in the nearby
Chamaeleon II cloud at a distance of 180 pc. The shocked region has an
angular extent of roughly 30. and is not contaminated with emission
from other nearby objects. The gas, traced by H2O and CO, emits
radiation predominantly in the far-infrared regime. For that reason, this
program can only be executed using the instruments aboard the
Herschel Space Observatory.

We propose spectroscopy of rotational H2O and CO transitions, falling in
the wavelength range covered by SPIRE and PACS. These observations will
allow us to stratify the shocked region in different physical/kinematical
components. We will also improve our understanding of the mechanisms
responsible for water production and destruction. Given the relatively
large angular extent of the region, we will determine the types of shock
responsible for the emission in different positions along the shocked
surface. We also propose HIFI observations of selected CO and H2O
transitions. A bullet feature has previously been observed in several CO
line profiles. Using HIFI, we will constrain the origin and physical
properties of the region responsible for this emission.
Publication Resolving the shocked gas in HH 54 with Herschel. CO line mapping at high spatial and spectral resolution . Bjerkeli P. et al. . Astronomy & Astrophysics, Volume 571, id.A90, 6 pp. . 571 . 10.1051\/0004-6361\/201424789 . 2014A&A...571A..90B ,
Instrument SPIRE_SpireSpectrometer_, HIFI_HifiPoint_dbs, PACS_PacsRangeSpec_point, HIFI_HifiPoint_pos
Temporal Coverage 2012-07-16T15:12:13Z/2012-12-30T03:48:48Z
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 2013-06-30T02:27:25Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013, Herschel Observations Of The Shocked Gas In Hh54, SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-9fd672u