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A Synoptic Map of Halo Substructures from the Pan-STARRS1 3π Survey
- Source :
- Bernard, E J, Ferguson, A M N, Schlafly, E F, Martin, N F, Rix, H-W, Bell, E F, Finkbeiner, D P, Goldman, B, Martínez-Delgado, D, Sesar, B, Wyse, R F G, Burgett, W S, Chambers, K C, Draper, P W, Hodapp, K W, Kaiser, N, Kudritzki, R-P, Magnier, E A, Metcalfe, N, Wainscoat, R J & Waters, C 2016, ' A Synoptic Map of Halo Substructures from the Pan-STARRS1 3π Survey ', Monthly Notices of the Royal Astronomical Society, vol. 463, no. 2, pp. 1759–1768 . https://doi.org/10.1093/mnras/stw2134, Monthly Notices of the Royal Astronomical Society, Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2016, 463 (2), pp.1759-1768. ⟨10.1093/mnras/stw2134⟩, Monthly notices of the Royal Astronomical Society, 2016, Vol.463(2), pp.1759-1768 [Peer Reviewed Journal]
- Publication Year :
- 2016
-
Abstract
- We present a panoramic map of the entire Milky Way halo north of dec~-30 degrees (~30,000 deg^2), constructed by applying the matched-filter technique to the Pan-STARRS1 3Pi Survey dataset. Using single-epoch photometry reaching to g~22, we are sensitive to stellar substructures with heliocentric distances between 3.5 and ~35 kpc. We recover almost all previously-reported streams in this volume and demonstrate that several of these are significantly more extended than earlier datasets have indicated. In addition, we also report five new candidate stellar streams. One of these features appears significantly broader and more luminous than the others and is likely the remnant of a dwarf galaxy. The other four streams are consistent with a globular cluster origin, and three of these are rather short in projection (<br />Comment: 12 pages, 6 figures. MNRAS, in press. The maps in FITS format for the 26 distance slices are made available to the community at http://dx.doi.org/10.5281/zenodo.60518, while full sky colour maps in various projections are provided at http://www.roe.ac.uk/~ejb/streams.html
- Subjects :
- Milky Way
Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
01 natural sciences
Galactic halo
Photometry (optics)
surveys
0103 physical sciences
Astrophysics::Solar and Stellar Astrophysics
halo [Galaxy]
structure
010303 astronomy & astrophysics
halo -Galaxy
Astrophysics::Galaxy Astrophysics
Dwarf galaxy
Physics
010308 nuclear & particles physics
Astronomy
Hertzsprung-Russell and colour-magnitude diagrams
Astronomy and Astrophysics
Astrophysics - Astrophysics of Galaxies
Accretion (astrophysics)
Space and Planetary Science
[SDU]Sciences of the Universe [physics]
Globular cluster
Ophiuchus
Halo
Astrophysics::Earth and Planetary Astrophysics
surveys -Hertzsprung-Russell and colour-magnitude diagrams -Galaxy
structure [Galaxy]
Subjects
Details
- Language :
- English
- ISSN :
- 00358711 and 13652966
- Database :
- OpenAIRE
- Journal :
- Bernard, E J, Ferguson, A M N, Schlafly, E F, Martin, N F, Rix, H-W, Bell, E F, Finkbeiner, D P, Goldman, B, Martínez-Delgado, D, Sesar, B, Wyse, R F G, Burgett, W S, Chambers, K C, Draper, P W, Hodapp, K W, Kaiser, N, Kudritzki, R-P, Magnier, E A, Metcalfe, N, Wainscoat, R J & Waters, C 2016, ' A Synoptic Map of Halo Substructures from the Pan-STARRS1 3π Survey ', Monthly Notices of the Royal Astronomical Society, vol. 463, no. 2, pp. 1759–1768 . https://doi.org/10.1093/mnras/stw2134, Monthly Notices of the Royal Astronomical Society, Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2016, 463 (2), pp.1759-1768. ⟨10.1093/mnras/stw2134⟩, Monthly notices of the Royal Astronomical Society, 2016, Vol.463(2), pp.1759-1768 [Peer Reviewed Journal]
- Accession number :
- edsair.doi.dedup.....0d00c150e97f2212ee23d70005a86571