G306.3-0.9: A newly discovered young galactic supernova remnant

Mark T. Reynolds; Shyeh T. Loi; Tara Murphy; Jon M. Miller; Dipankar Maitra; Kayhan Gültekin; Neil Gehrels; Jamie A. Kennea; Michael H. Siegel; Jonathan Gelbord; Paul Kuin; Vanessa Moss; Sarah Reeves; William J. Robbins; B. M. Gaensler; Rubens C. Reis; Robert Petre

doi:10.1088/0004-637X/766/2/112

G306.3-0.9: A newly discovered young galactic supernova remnant

Mark T. Reynolds, Shyeh T. Loi, Tara Murphy, Jon M. Miller, Dipankar Maitra, Kayhan Gültekin, Neil Gehrels, Jamie A. Kennea, Michael H. Siegel, Jonathan Gelbord, Paul Kuin, Vanessa Moss, Sarah Reeves, William J. Robbins, B. M. Gaensler, Rubens C. Reis, Robert Petre

Astronomy & Astrophysics

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Abstract

We present X-ray and radio observations of the new Galactic supernova remnant (SNR) G306.3-0.9, recently discovered by Swift. Chandra imaging reveals a complex morphology, dominated by a bright shock. The X-ray spectrum is broadly consistent with a young SNR in the Sedov phase, implying an age of 2500 yr for a distance of 8 kpc, plausibly identifying this as one of the 20 youngest Galactic SNRs. Australia Telescope Compact Array imaging reveals a prominent ridge of radio emission that correlates with the X-ray emission. We find a flux density of 160 mJy at 1 GHz, which is the lowest radio flux recorded for a Galactic SNR to date. The remnant is also detected at 24 μm, indicating the presence of irradiated warm dust. The data reveal no compelling evidence for the presence of a compact stellar remnant.

Original language	English (US)
Article number	112
Journal	Astrophysical Journal
Volume	766
Issue number	2
DOIs	https://doi.org/10.1088/0004-637X/766/2/112
State	Published - Apr 1 2013

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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Reynolds, M. T., Loi, S. T., Murphy, T., Miller, J. M., Maitra, D., Gültekin, K., Gehrels, N., Kennea, J. A., Siegel, M. H., Gelbord, J., Kuin, P., Moss, V., Reeves, S., Robbins, W. J., Gaensler, B. M., Reis, R. C., & Petre, R. (2013). G306.3-0.9: A newly discovered young galactic supernova remnant. Astrophysical Journal, 766(2), Article 112. https://doi.org/10.1088/0004-637X/766/2/112

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title = "G306.3-0.9: A newly discovered young galactic supernova remnant",

abstract = "We present X-ray and radio observations of the new Galactic supernova remnant (SNR) G306.3-0.9, recently discovered by Swift. Chandra imaging reveals a complex morphology, dominated by a bright shock. The X-ray spectrum is broadly consistent with a young SNR in the Sedov phase, implying an age of 2500 yr for a distance of 8 kpc, plausibly identifying this as one of the 20 youngest Galactic SNRs. Australia Telescope Compact Array imaging reveals a prominent ridge of radio emission that correlates with the X-ray emission. We find a flux density of 160 mJy at 1 GHz, which is the lowest radio flux recorded for a Galactic SNR to date. The remnant is also detected at 24 μm, indicating the presence of irradiated warm dust. The data reveal no compelling evidence for the presence of a compact stellar remnant.",

author = "Reynolds, {Mark T.} and Loi, {Shyeh T.} and Tara Murphy and Miller, {Jon M.} and Dipankar Maitra and Kayhan G{\"u}ltekin and Neil Gehrels and Kennea, {Jamie A.} and Siegel, {Michael H.} and Jonathan Gelbord and Paul Kuin and Vanessa Moss and Sarah Reeves and Robbins, {William J.} and Gaensler, {B. M.} and Reis, {Rubens C.} and Robert Petre",

year = "2013",

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doi = "10.1088/0004-637X/766/2/112",

language = "English (US)",

volume = "766",

journal = "Astrophysical Journal",

issn = "0004-637X",

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T2 - A newly discovered young galactic supernova remnant

AU - Reynolds, Mark T.

AU - Loi, Shyeh T.

AU - Murphy, Tara

AU - Miller, Jon M.

AU - Maitra, Dipankar

AU - Gültekin, Kayhan

AU - Gehrels, Neil

AU - Kennea, Jamie A.

AU - Siegel, Michael H.

AU - Gelbord, Jonathan

AU - Kuin, Paul

AU - Moss, Vanessa

AU - Reeves, Sarah

AU - Robbins, William J.

AU - Gaensler, B. M.

AU - Reis, Rubens C.

AU - Petre, Robert

PY - 2013/4/1

Y1 - 2013/4/1

N2 - We present X-ray and radio observations of the new Galactic supernova remnant (SNR) G306.3-0.9, recently discovered by Swift. Chandra imaging reveals a complex morphology, dominated by a bright shock. The X-ray spectrum is broadly consistent with a young SNR in the Sedov phase, implying an age of 2500 yr for a distance of 8 kpc, plausibly identifying this as one of the 20 youngest Galactic SNRs. Australia Telescope Compact Array imaging reveals a prominent ridge of radio emission that correlates with the X-ray emission. We find a flux density of 160 mJy at 1 GHz, which is the lowest radio flux recorded for a Galactic SNR to date. The remnant is also detected at 24 μm, indicating the presence of irradiated warm dust. The data reveal no compelling evidence for the presence of a compact stellar remnant.

AB - We present X-ray and radio observations of the new Galactic supernova remnant (SNR) G306.3-0.9, recently discovered by Swift. Chandra imaging reveals a complex morphology, dominated by a bright shock. The X-ray spectrum is broadly consistent with a young SNR in the Sedov phase, implying an age of 2500 yr for a distance of 8 kpc, plausibly identifying this as one of the 20 youngest Galactic SNRs. Australia Telescope Compact Array imaging reveals a prominent ridge of radio emission that correlates with the X-ray emission. We find a flux density of 160 mJy at 1 GHz, which is the lowest radio flux recorded for a Galactic SNR to date. The remnant is also detected at 24 μm, indicating the presence of irradiated warm dust. The data reveal no compelling evidence for the presence of a compact stellar remnant.

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JO - Astrophysical Journal

JF - Astrophysical Journal

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ER -

G306.3-0.9: A newly discovered young galactic supernova remnant

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