A dataset provided by the European Space Agency

Name OT1_ncalvet_1
Title A Deeper Look at the 3-10 Myr Old Disks in the Orion OB1 Association


DOI https://doi.org/10.5270/esa-owf0vcc
Author European Space Agency
Description We propose to obtain deep 70/160 micron PACS Photometer observations
of populations in the Orion OB1 association, spanning the critical
3 to 10 Myr range of ages when disks are supposed to
dissipate and planets to form. Our ongoing large-scale survey of the
Orion OB1 star-forming regions has allowed us to find the elusive low
mass population in the older parts of the association, and secure the
photometric and spectroscopic data to fully determine the stellar and
accretion properties of these objects. We propose to obtain slow-speed
scans of five 30.x30. fields, covering sections of the virgul 3 Myr
old cluster sigma Ori, a virgul 5 Myr old group in the Ori OB1b
subassociation, and the virgul 9 Myr old 25 Ori group, the most
populous stellar group at this age within 500 pc. Our Spitzer IRAC
and MIPS data for the proposed fields allow us to estimate that
we will detect at least 62 disks in our PACS observations, 48%
of which also have Spitzer IRS data. With the Herschel far-infrared fluxes
and our mid-infrared and optical fluxes we
will construct the most complete spectral energy distributions for a
large sample of 3-10 Myr disks. The interpretation of these SEDs with
our irradiated accretion disk codes, constrained by the stellar
parameters and mass accretion rates determined independently from the
UV excess, will allow the best characterization to date of disks in
this age range, and provide essential constraints on theoretical models of
disk evolution and planet formation.
Publication A Herschel View of Protoplanetary Disks in the σ Ori Cluster . Maucó Karina et al. . The Astrophysical Journal, Volume 829, Issue 1, article id. 38, 21 pp. (2016). . 829 . 10.3847\/0004-637X\/829\/1\/38 . 2016ApJ...829...38M ,
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 2012-03-14T03:51:56Z/2012-03-29T08:55:46Z
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 2012-09-29T04:50:11Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2012, A Deeper Look At The 3-10 Myr Old Disks In The Orion Ob1 Association, SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-owf0vcc