The Astronomical Journal (Jan 2023)
EMU Detection of a Large and Low Surface Brightness Galactic SNR G288.8–6.3
- Miroslav D. Filipović,
- Shi Dai,
- Bojan Arbutina,
- Natasha Hurley-Walker,
- Robert Brose,
- Werner Becker,
- Hidetoshi Sano,
- Dejan Urošević,
- T. H. Jarrett,
- Andrew M. Hopkins,
- Rami Z. E. Alsaberi,
- R. Alsulami,
- Cristobal Bordiu,
- Brianna Ball,
- Filomena Bufano,
- Christopher Burger-Scheidlin,
- Evan Crawford,
- Jayanne English,
- Frank Haberl,
- Adriano Ingallinera,
- Anna D. Kapinska,
- Patrick J. Kavanagh,
- Bärbel S. Koribalski,
- Roland Kothes,
- Sanja Lazarević,
- Jonathan Mackey,
- Gavin Rowell,
- Denis Leahy,
- Sara Loru,
- Peter J. Macgregor,
- Luciano Nicastro,
- Ray P. Norris,
- Simone Riggi,
- Manami Sasaki,
- Milorad Stupar,
- Corrado Trigilio,
- Grazia Umana,
- Tessa Vernstrom,
- Branislav Vukotić
Affiliations
- Miroslav D. Filipović
- ORCiD
- Western Sydney University , Locked Bag 1797, Penrith South DC, NSW 2751, Australia ; [email protected]
- Shi Dai
- ORCiD
- Western Sydney University , Locked Bag 1797, Penrith South DC, NSW 2751, Australia ; [email protected]
- Bojan Arbutina
- ORCiD
- Department of Astronomy, Faculty of Mathematics, University of Belgrade , Studentski trg 16, 11000 Belgrade, Serbia
- Natasha Hurley-Walker
- ORCiD
- International Centre for Radio Astronomy Research, Curtin University , Bentley, WA 6102, Australia
- Robert Brose
- ORCiD
- Dublin Institute for Advanced Studies , Astronomy & Astrophysics Section, DIAS Dunsink Observatory, Dublin, D15 XR2R, Ireland
- Werner Becker
- ORCiD
- Max-Planck-Institut für extraterrestrische Physik , Gießenbachstraße 1, D-85748 Garching, Germany; Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, 53121 Bonn, Germany
- Hidetoshi Sano
- ORCiD
- Faculty of Engineering, Gifu University , 1-1 Yanagido, Gifu 501-1193, Japan
- Dejan Urošević
- ORCiD
- Department of Astronomy, Faculty of Mathematics, University of Belgrade , Studentski trg 16, 11000 Belgrade, Serbia
- T. H. Jarrett
- ORCiD
- Western Sydney University , Locked Bag 1797, Penrith South DC, NSW 2751, Australia ; [email protected]; Department of Astronomy, University of Cape Town , Private Bag X3, Rondebosch 7701, South Africa
- Andrew M. Hopkins
- ORCiD
- School of Mathematical and Physical Sciences, 12 Wally's Walk, Macquarie University , NSW 2109, Australia
- Rami Z. E. Alsaberi
- ORCiD
- Western Sydney University , Locked Bag 1797, Penrith South DC, NSW 2751, Australia ; [email protected]
- R. Alsulami
- ORCiD
- School of Physical Sciences, The University of Adelaide , Adelaide 5005, Australia
- Cristobal Bordiu
- ORCiD
- INAF—Osservatorio Astrofisico di Catania , via Santa Sofia 78, I-95123 Catania, Italy
- Brianna Ball
- ORCiD
- Dominion Radio Astrophysical Observatory, Herzberg Astronomy and Astrophysics, National Research Council Canada , PO Box 248, Penticton, BC V2A 6J9, Canada
- Filomena Bufano
- ORCiD
- INAF—Osservatorio Astrofisico di Catania , via Santa Sofia 78, I-95123 Catania, Italy
- Christopher Burger-Scheidlin
- ORCiD
- Dublin Institute for Advanced Studies , Astronomy & Astrophysics Section, DIAS Dunsink Observatory, Dublin, D15 XR2R, Ireland; School of Physics, University College Dublin , Belfield, Dublin, D04 V1W8, Ireland
- Evan Crawford
- ORCiD
- Western Sydney University , Locked Bag 1797, Penrith South DC, NSW 2751, Australia ; [email protected]
- Jayanne English
- ORCiD
- Department of Physics and Astronomy, University of Manitoba , Winnipeg, MB R3T 2N2, Canada
- Frank Haberl
- ORCiD
- Max-Planck-Institut für extraterrestrische Physik , Gießenbachstraße 1, D-85748 Garching, Germany
- Adriano Ingallinera
- ORCiD
- INAF—Osservatorio Astrofisico di Catania , via Santa Sofia 78, I-95123 Catania, Italy
- Anna D. Kapinska
- ORCiD
- National Radio Astronomy Observatory , PO Box 0, Socorro, NM 87801, USA
- Patrick J. Kavanagh
- ORCiD
- Department of Experimental Physics, Maynooth University, Maynooth , Co. Kildare, Ireland
- Bärbel S. Koribalski
- ORCiD
- Western Sydney University , Locked Bag 1797, Penrith South DC, NSW 2751, Australia ; [email protected]; CSIRO Space and Astronomy , Australia Telescope National Facility, PO Box 76, Epping, NSW 1710, Australia
- Roland Kothes
- ORCiD
- Dominion Radio Astrophysical Observatory, Herzberg Astronomy and Astrophysics, National Research Council Canada , PO Box 248, Penticton, BC V2A 6J9, Canada
- Sanja Lazarević
- ORCiD
- Western Sydney University , Locked Bag 1797, Penrith South DC, NSW 2751, Australia ; [email protected]; Astronomical Observatory , Volgina 7, 11060 Belgrade, Serbia
- Jonathan Mackey
- ORCiD
- Dublin Institute for Advanced Studies , Astronomy & Astrophysics Section, DIAS Dunsink Observatory, Dublin, D15 XR2R, Ireland; School of Physics, University College Dublin , Belfield, Dublin 4, Ireland
- Gavin Rowell
- ORCiD
- School of Physical Sciences, The University of Adelaide , Adelaide 5005, Australia
- Denis Leahy
- ORCiD
- Department of Physics and Astronomy, University of Calgary , Calgary, AB T2N 1N4, Canada
- Sara Loru
- ORCiD
- INAF—Osservatorio Astrofisico di Catania , via Santa Sofia 78, I-95123 Catania, Italy
- Peter J. Macgregor
- ORCiD
- Western Sydney University , Locked Bag 1797, Penrith South DC, NSW 2751, Australia ; [email protected]; CSIRO Space and Astronomy , Australia Telescope National Facility, PO Box 76, Epping, NSW 1710, Australia
- Luciano Nicastro
- ORCiD
- INAF—Osservatorio di Astrofisica e Scienza dello Spazio di Bologna , Via Piero Gobetti 93/3, I-40129 Bologna, Italy
- Ray P. Norris
- ORCiD
- Western Sydney University , Locked Bag 1797, Penrith South DC, NSW 2751, Australia ; [email protected]; CSIRO Space and Astronomy , Australia Telescope National Facility, PO Box 76, Epping, NSW 1710, Australia
- Simone Riggi
- ORCiD
- INAF—Osservatorio Astrofisico di Catania , via Santa Sofia 78, I-95123 Catania, Italy
- Manami Sasaki
- ORCiD
- Dr Karl Remeis Observatory, Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg , Sternwartstraße 7, 96049 Bamberg, Germany
- Milorad Stupar
- ORCiD
- Western Sydney University , Locked Bag 1797, Penrith South DC, NSW 2751, Australia ; [email protected]
- Corrado Trigilio
- ORCiD
- INAF—Osservatorio Astrofisico di Catania , via Santa Sofia 78, I-95123 Catania, Italy
- Grazia Umana
- ORCiD
- INAF—Osservatorio Astrofisico di Catania , via Santa Sofia 78, I-95123 Catania, Italy
- Tessa Vernstrom
- ORCiD
- ICRAR, The University of Western Australia , 35 Stirling Hwy., 6009 Crawley, Australia
- Branislav Vukotić
- ORCiD
- Astronomical Observatory , Volgina 7, 11060 Belgrade, Serbia
- DOI
- https://doi.org/10.3847/1538-3881/acf19c
- Journal volume & issue
-
Vol. 166,
no. 4
p. 149
Abstract
We present the serendipitous detection of a new Galactic supernova remnant (SNR), G288.8–6.3, using data from the Australian Square Kilometre Array Pathfinder (ASKAP) Evolutionary Map of the Universe (EMU) survey. Using multifrequency analysis, we confirm this object as an evolved Galactic SNR at high Galactic latitude with low radio surface brightness and typical SNR spectral index of α = − 0.41 ± 0.12. To determine the magnetic field strength in SNR G288.8–6.3, we present the first derivation of the equipartition formulae for SNRs with spectral indices α > − 0.5. The angular size is 1.°8 × 1.°6 (107.′6 × 98.′4), and we estimate that its intrinsic size is ∼40 pc, which implies a distance of ∼1.3 kpc and a position of ∼140 pc above the Galactic plane. This is one of the largest in angular size and closest Galactic SNRs. Given its low radio surface brightness, we suggest that it is about 13,000 yr old.
Keywords
