A dataset provided by the European Space Agency

Name OT2_zbalog_3
Title Multi-epoch observations of IC 348: Using Far Infrared Variability to Constrain theDust Structure in Young Stellar Objects
URL

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DOI 10.5270/esa-hmidync
Author balog, z.
Description There is growing evidence that the star formation process is in fact highly dynamic, on timescales from days to centuries. The temporal variability is a new and powerful diagnostic tool to study Young Stellar Objects (YSOs). Depending on the time scale of the variability in the mid and far infrared we can learn about different physical mechanisms shaping their structure and dynamics. Here we propose to extend our near and mid infrared study of variable YSOs in the young open cluster IC 348 to the far infrared (70 and 160 micron) using Herschel-PACS. We will constrain the frequency of far infrared variability and compare the observed time dependent behavior with protostellar and disk models to understand its origin. Possible mechanisms include fluctuations in the accretion luminosity, or echoes of inner disk structural changes projected onto the infalling envelope or flared outer disk surface. Our sample in IC348 covers a large part of the evolutionary sequence of YSOs from class I sources to transitional disks. The cadence of the requested observations allow us to study variations on time scales from days to months that could be extended to several years using our Spitzer-MIPS data. This OT2 proposal is an essential complement of our GT2 program covering one visibility epoch,
Publication The Extraordinary Far-infrared Variation of a Protostar: Herschel-PACS Observations of LRLL54361 . Balog Zoltan et al. . The Astrophysical Journal Letters, Volume 789, Issue 2, article id. L38, 5 pp. (2014). . 789 . 10.1088\/2041-8205\/789\/2\/L38 . 2014ApJ...789L..38B ,
Catalog of High Protostellar Surface Density Regions in Nearby Embedded Clusters . Li Juan et al. . The Astrophysical Journal, Volume 871, Issue 2, article id. 163, 18 pp. (2019). . 871 . 10.3847\/1538-4357\/aaf652 . 2019ApJ...871..163L ,
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 ,
Instrument PACS_PacsPhoto_largeScan
Temporal Coverage 2012-08-19T01:01:26Z/2012-08-28T03:47:22Z
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 ┬Ám range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/herschel/
Date Published 2013-02-28T03:41:53Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-02-28T03:41:53Z, OT2_zbalog_3, SPG v14.2.0. https://doi.org/10.5270/esa-hmidync