A dataset provided by the European Space Agency

Name HIIGAL
Title INFRARED STUDIES OF HII GALAXIES WITH COMPANIONS
URL

http://nida.esac.esa.int/nida-sl-tap/data?RETRIEVAL_TYPE=OBSERVATION&PRODUCT_LEVEL=ALL&obsno=374022520

DOI https://doi.org/10.5270/esa-8949fhl
Author KRUEGER, HARALD K
Description we propose to observe a sample of actively star forming dwarf galaxies, also known as hii galaxies, 70% of which have optical companions. the companions were initially detected by searching for neutral hydrogen and were subsequently identified with optical counterparts on r-band ccd frames. it is suggested that the companions have provided the trigger for the current burst of star formation. we plan to observe the hii galaxies, most of which have iras detections at 60 and 100 um, and to search for ir emission from the companion objects. our aim is to try to determine the dust masses in these objects and to determine their gas-to dust ratio (note that most of the detectable matter in these objects is in the gas phase, stars contributing less than 50%). as these objects are among the lowest abundance systems known, we.d like to find out if the dust characteristics, such as temperature correlates with metallicity and if dust influences the star formation threshold.
Instrument PHT03 , PHT22 , PHT32
Temporal Coverage 1996-06-15T01:03:47Z/1997-12-02T01:41:36Z
Version 1.0
Mission Description The Infrared Space Observatory (ISO) was the worlds first true orbiting infrared observatory. Equipped with four highly-sophisticated and versatile scientific instruments, it was launched by Ariane in November 1995 and provided astronomers world-wide with a facility of unprecedented sensitivity and capabilities for a detailed exploration of the Universe at infrared wavelengths.
Creator Contact https://support.cosmos.esa.int/iso/
Date Published 1999-04-08T00:00:00Z
Keywords ISO, infrared, SWS, LWS, ISOCAM, ISOPHOT
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, KRUEGER et al., 1999, 'INFRARED STUDIES OF HII GALAXIES WITH COMPANIONS', 1.0, European Space Agency, https://doi.org/10.5270/esa-8949fhl