Hi-GAL2pi. Completing the Herschel infrared Galactic Plane Survey as the fundamental step towards a bottom-up model of the Milky Way as a star-formation engine: DDT extension
Hi-GAL2pi will complete the 5-band far-IR survey of the Galactic Plane (GP), using PACS and SPIRE in pMode to map the two Galactic longitude areas that are not covered by the Hi-GAL KP nor its OT1 extension to the outer Galaxy. These two ~60 longitude-wide slices centered toward the cardinal directions l=90 and l=270 include critical regions with uniquely favourable observing conditions found nowhere else in the Galaxy: a) the longest available panoramic view of the Persus Arm, which is the arm with the least foreground contamination from the suns viewpoint; b) the largely unexplored inter-arm region between the Persus and Carina Arms that spans most of the l=270 slice, that alone can be observed relatively free of confusion from our vantage point.The complete census of temperature, mass, and luminosity of filaments, clumps, cores and YSOs in these two regions will provide a spatially resolved measurement of the arm/inter-arm contrast in star formation rate (SFR) and efficiency (SFE), as well as a panoramic and unconfused view of the SFR and SFE along a full spiral arm extending from the Molecular Ring to the outer co-rotation Galactocentric radius. These observables, not accessible in the GP area covered in Hi-GAL KP or OT1 programs, will uniquely enable the critical steps in our understanding of the mechanisms responsible for the assembly, formation and fragmentation of the HI superclouds and the molecular clouds on spiral arms, and thus lay the foundations for a predictive global model of star formation in the Galaxy, that may serve as a template for Extragalactic studies. The completion of the Herschel Galactic Plane survey will establish a unique legacy that will be a keystone for all future Galactic and much extragalactic research, with data products that will be mined for decades by future generations and used for research not yet envisioned, with rich potential for serendipitous discoveries. Given our demonstrated community-oriented approach, we again waive our proprietary period.
Publication
The Hi-GAL compact source catalogue - II. The 360deg catalogue of clump physical properties | Elia Davide et al. | Monthly Notices of the Royal Astronomical Society | null | null | 2021MNRAS.504.2742E |
First Extended Catalogue of Galactic bubble infrared fluxes from WISE and Herschel surveys | Bufano F. et al. | Monthly Notices of the Royal Astronomical Society Volume 473 Issue 3 p.3671-3692 | 473 | 10.1093/mnras/stx2560 | 2018MNRAS.473.3671B | http://adsabs.harvard.edu/abs/2018MNRAS.473.3671B
The Nearby Evolved Stars Survey II: Constructing a volume-limited sample and first results from the James Clerk Maxwell Telescope | Scicluna P. et al. | Monthly Notices of the Royal Astronomical Society | null | null | 2022MNRAS.512.1091S |
The Hi-GAL catalogue of dusty filamentary structures in the Galactic plane | Schisano Eugenio et al. | Monthly Notices of the Royal Astronomical Society | null | null | 2020MNRAS.492.5420S |
Galactocentric variation of the gas-to-dust ratio and its relation with metallicity | Giannetti A. et al. | Astronomy & Astrophysics Volume 606 id.L12 14 pp. | 606 | 10.1051/0004-6361/201731728 | 2017A&A...606L..12G | http://adsabs.harvard.edu/abs/2017A%26A...606L..12G
The evolutionary status of protostellar clumps hosting class II methanol masers | Jones B. M. et al. | Monthly Notices of the Royal Astronomical Society | null | null | 2020MNRAS.493.2015J |
The Forgotten Quadrant Survey. 12CO and 13CO (1-0) survey of the Galactic plane in the range 220deg <l <240deg -2.deg5 < b < 0deg | Benedettini M. et al. | Astronomy and Astrophysics | null | null | 2020A&A...633A.147B |
Multitemperature mapping of dust structures throughout the Galactic Plane using the PPMAP tool with Herschel Hi-GAL data | Marsh K. A. et al. | Monthly Notices of the Royal Astronomical Society Volume 471 Issue 3 p.2730-2742 | 471 | 10.1093/mnras/stx1723 | 2017MNRAS.471.2730M | http://adsabs.harvard.edu/abs/2017MNRAS.471.2730M
Physical properties of Galactic Planck cold cores revealed by the Hi-GAL survey | Zahorecz S. et al. | Astronomy & Astrophysics Volume 591 id.A105 21 pp. | 591 | 10.1051/0004-6361/201527909 | 2016A&A...591A.105Z | http://adsabs.harvard.edu/abs/2016A%26A...591A.105Z
Thermal balance and comparison of gas and dust properties of dense clumps in the Hi-GAL survey | Merello M. et al. | Monthly Notices of the Royal Astronomical Society Volume 483 Issue 4 p.5355-5379 | 483 | 10.1093/mnras/sty3453 | 2019MNRAS.483.5355M | http://adsabs.harvard.edu/abs/2019MNRAS.483.5355M
Instrument
SPIRE\/PACS parallel_SpirePacsParallel_
Temporal Coverage
2012-10-29T07:54:26Z/2012-11-04T13:04:08Z
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.
European Space Agency, molinari et al., 2013, 'Hi-GAL2pi. Completing the Herschel infrared Galactic Plane Survey as the fundamental step towards a bottom-up model of the Milky Way as a star-formation engine: DDT extension', SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-f74kl4g
