| Name | GT2_zbalog_2 |
| Title | Multiepoch observations of IC 348: Using Far-Infrared Variability to Constrain theDust Structure in Young Stellar Objects |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342238774&instrument_name=PACS&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-87ufdv3 |
| Author | balog, z. |
| Description | There is growing evidence that the star formation process is in facthighly dynamic, on timescales from days to centuries. The temporalvariability is a new and powerful diagnostic tool to study Young StellarObjects (YSOs). Depending on the timescale of the variability in themid and farinfrared we can learn about different physical mechanismsshaping their structure and dynamics. Here we propose to extend ournear and midinfrared study of variable YSOs in the young open cluster IC 348 to the farinfrared (70 and 160 micron) using Herschel/PACS. We will constrain the frequency of farinfrared variability and compare the observed timedependent behavior with protostellar and disk models to understand its origin.Possible mechanisms include fluctuations in the accretion luminosity, orechoes of inner disk structural changes projected onto the infallingenvelope or flared outer disk surface. Our sample in IC348 covers a large part of the evolutionary sequence of YSOs from class I sources totransitional disks. The cadence of the requested observations allow us tostudy variations on time scales from days to months that could be extended to several years using our Spitzer/MIPS data. |
| Publication |
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| Instrument | PACS_PacsPhoto_largeScan |
| Temporal Coverage | 2012-02-08T08:55:18Z/2012-03-20T13:36:52Z |
| 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 | 2012-09-20T13:31:23Z |
| Last Update | 2026-03-02 |
| Keywords | Herschel Space Observatory data, ESA Herschel mission dataset, far-infrared astronomy observations, submillimeter astronomy data, infrared space telescope observations, PACS photometer data, PACS spectrometer data, SPIRE photometer data, SPIRE Fourier transform spectrometer data, HIFI heterodyne spectroscopy data, far-infrared spectroscopy dataset, submillimeter spectral line observations, cold universe observations dataset, star formation infrared data, molecular cloud far-infrared observations, interstellar medium spectroscopy data, protoplanetary disk infrared observations, galaxy evolution far-infrared data, dust emission submillimeter observations, cosmic infrared background measurements, extragalactic infrared survey data, calibrated level 2 data products, FITS files astronomy, spectral cubes far-infrared, flux-calibrated maps, continuum photometry data, spectral energy distribution measurements, ESA Herschel Science Archive data |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, balog et al., 2012, 'Multiepoch observations of IC 348: Using Far-Infrared Variability to Constrain theDust Structure in Young Stellar Objects', SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-87ufdv3 |