A dataset provided by the European Space Agency

Name SDP_nevans_3
Title Dust, Ice, and Gas In Time (DIGIT)


DOI https://doi.org/10.5270/esa-jahe6il
Author European Space Agency
Description Dust, ice, and gas evolve as they move from envelopes of forming stars
into circumstellar disks where they can become the main building
blocks of planets. Herschel-PACS is uniquely suited to trace this
evolution through broadband emission from dust, through specific
features of solids which reveal elemental composition and water
content, and through spectral bands of the main icy components. Both
atomic and molecular lines, in particular the [O I], H2O and OH lines,
will be used to follow the gas, study the interchange between gas and
ice, and trace the oxygen budget. The gas and dust spectral features
are at the same time excellent probes of macroscopic parameters, such
as temperature, UV and X-ray fields, density and thermal structures
of envelopes and disks, and dynamical mixing processes.
Our sample covers sources with a range in
evolutionary state from embedded objects with massive envelopes to
weak-line T Tauri stars with dissipating disks, and with a range in
luminosity, spectral type, and dust characteristics. Both our high S/N
PACS full spectral range scans (complemented by Spitzer mid-IR
spectral scans) and our targeted, deep gas-phase line measurements
will have lasting archival value.
Publication First results of the Herschel key program ''Dust, Ice and Gas In Time.. (DIGIT): Dust and gas spectroscopy of HD 100546 . Sturm B. et al. . Astronomy and Astrophysics, Volume 518, id.L129, 5 pp. . 518 . 10.1051\/0004-6361\/201014674 . 2010A&A...518L.129S ,
DIGIT survey of far-infrared lines from protoplanetary discs. II. CO . Meeus Gwendolyn et al. . Astronomy & Astrophysics, Volume 559, id.A84, 20 pp. . 559 . 10.1051\/0004-6361\/201321122 . 2013A&A...559A..84M ,
Mass constraints for 15 protoplanetary discs from HD 1-0 . Kama M. et al. . Astronomy and Astrophysics . null . null . 2020A&A...634A..88K ,
Low abundance, strong features: window-dressing crystalline forsterite in the disk wall of HD 100546 . Mulders G. D. et al. . Astronomy & Astrophysics, Volume 531, id.A93, 17 pp. . 531 . 10.1051\/0004-6361\/201116770 . 2011A&A...531A..93M ,
The CDF Archive: Herschel PACS and SPIRE Spectroscopic Data Pipeline and Products for Protostars and Young Stellar Objects . Green Joel D. et al. . The Astronomical Journal, Volume 151, Issue 3, article id. 75, 23 pp. (2016). . 151 . 10.3847\/0004-6256\/151\/3\/75 . 2016AJ....151...75G ,
The warm gas atmosphere of the HD 100546 disk seen by Herschel. Evidence of a gas-rich, carbon-poor atmosphere? . Bruderer S. et al. . Astronomy & Astrophysics, Volume 541, id.A91, 28 pp. . 541 . 10.1051\/0004-6361\/201118218 . 2012A&A...541A..91B ,
DIGIT survey of far-infrared lines from protoplanetary disks. I. [O i], [C ii], OH, H2O, and CH+ . Fedele D. et al. . Astronomy & Astrophysics, Volume 559,...
Instrument PACS_PacsRangeSpec_
Temporal Coverage 2009-12-11T03:55:45Z/2009-12-11T11:18:01Z
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 2010-01-20T08:53:27Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2010, Dust Comma Ice Comma And Gas In Time Openpardigitclosepar, SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-jahe6il