A dataset provided by the European Space Agency

Name OT1_abrandek_1
Title Solving the beta Pictoris carbon puzzle by HIFI observations of CII


DOI 10.5270/esa-nlt9ema
Author brandeker, a.
Description The nearby young A-star beta Pictoris is well known for its large circumstellar dust disk. The disk is also known to contain gas, which from absorption lines in the UV is found to be overabundant in carbon by a factor ~20. Recently, Herschel-PACS observed very strong emission from the CII line which seems to indicate that the disk is even more abundant in carbon than previously thought, up to a factor of 100 above other elements. This is unexpected, and we propose to investigate this with HIFI high-resolution spectroscopy of the CII 157um line profile. From the known Keplerian velocity field and the line profile, we will be able to constrain the spatial location of the carbon and thus the total carbon mass. The spatial location of the carbon gas will also give clues to its origin, in particular if it is related to the recently discovered planet in a ~10 AU orbit around beta Pic.
Publication A self-consistent model for the evolution of the gas produced in the debris disc of β Pictoris . Kral Q. et al. . Monthly Notices of the Royal Astronomical Society, Volume 461, Issue 1, p.845-858 . 461 . 10.1093\/mnras\/stw1361 . 2016MNRAS.461..845K ,
Herschel-HIFI observations of ionised carbon in the β Pictoris debris disk . Cataldi G. et al. . Astronomy & Astrophysics, Volume 563, id.A66, 9 pp. . 563 . 10.1051\/0004-6361\/201323126 . 2014A&A...563A..66C ,
ALMA Resolves C I Emission from the β Pictoris Debris Disk . Cataldi Gianni et al. . The Astrophysical Journal, Volume 861, Issue 1, article id. 72, 21 pp. (2018). . 861 . 10.3847\/1538-4357\/aac5f3 . 2018ApJ...861...72C ,
Instrument HIFI_HifiPoint_dbs
Temporal Coverage 2012-01-24T01:08:39Z/2012-01-24T09:31:20Z
Version SPG v14.1.0
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/herschel/
Date Published 2012-07-24T01:08:39Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2012-07-24T01:08:39Z, OT1_abrandek_1, SPG v14.1.0. https://doi.org/10.5270/esa-nlt9ema