Revisiting the distance, environment and supernova properties of SNR G57.2+0.8 that hosts SGR 1935+2154

Abstract

We have performed a multi-wavelength study of supernova remnant (SNR) G57.2+0.8 and its environment. The SNR hosts the magnetar SGR 1935+2154, which emitted an extremely bright ms-duration radio burst on 2020 Apr 28 (The Chime/Frb Collaboration et al. 2020; Bochenek et al. 2020). We used the 12CO and 13CO J=1-0 data from the Milky Way Image Scroll Painting (MWISP) CO line survey to search for molecular gas associated with G57.2+0.8, in order to constrain the physical parameters (e.g., the distance) of the SNR and its magnetar. We report that SNR G57.2+0.8 is likely impacting the molecular clouds (MCs) at the local standard of rest (LSR) velocity V_{LSR} ~ 30 km/s and excites a weak 1720 MHz OH maser with a peak flux density of 47 mJy/beam. The chance coincidence of a random OH spot falling in the SNR is <12%, and the OH-CO correspondence chance is 7% at the maser spot. This combines to give < 1% false probability of the OH maser, suggesting a real maser detection. The LSR velocity of the MCs places the SNR and magnetar at a kinematic distance of d=6.6 +/- 0.7 kpc. The nondetection of thermal X-ray emission from the SNR and the relatively dense environment suggests G57.2+0.8 be an evolved SNR with an age $t>1.6\times 10^4$ (d/6.6 kpc) yr. The explosion energy of G57.2+0.8 is lower than $2\times 10^{51}(n_0/10c{m}^{-3}{)}^{1.16}(d/6.6kpc{)}^{3.16}$ erg, which is not very energetic even assuming a high ambient density $n_0$ = 10 cm${}^{-3}$. This reinforces the opinion that magnetars do not necessarily result from very energetic supernova explosions.

9 pages, 5 figures, accepted for publication in the Astrophysical Journal

References in corpus (17)

• A fast radio burst associated with a Galactic magnetar
• A bright millisecond-duration radio burst from a Galactic magnetar
• Fast Radio Bursts
• INTEGRAL discovery of a burst with associated radio emission from the magnetar SGR 1935+2154
• Supernova remnant energetics and magnetars: no evidence in favour of millisecond proto-neutron stars
• FellWalker - a Clump Identification Algorithm
• On the Origin of Asymmetries in Bilateral Supernova Remnants
• Radio continuum and polarization study of SNR G57.2+0.8 associated with magnetar SGR1935+2154
• The HI/OH/Recombination line survey of the inner Milky Way (THOR): data release 2 and HI overview
• On the Distance of SGR 1935+2154 Associated with FRB 200428 and Hosted in SNR G57.2+0.8
• Updated radio $\Sigma -D$ relation for Galactic supernova remnants
• OH maser emission in the THOR survey of the northern Milky Way
• An XMM-Newton study of the mixed-morphology supernova remnant W28 (G6.4-0.1)
• Comparing supernova remnants around strongly magnetized and canonical pulsars
• Spatially resolved X-ray study of supernova remnants that host magnetars: Implication of their fossil field origin
• Progenitors and Explosion Properties of Supernova Remnants Hosting Central Compact Objects: I. RCW 103 Associated with the Peculiar Source 1E 161348-5055
• Interaction between the Supernova Remnant HB 3 and the Nearby Star-Forming Region W3

Cited by in corpus (39)

• A fast radio burst associated with a Galactic magnetar
• A bright millisecond-duration radio burst from a Galactic magnetar
• A peculiar hard X-ray counterpart of a Galactic fast radio burst
• No pulsed radio emission during a bursting phase of a Galactic magnetar
• The evolution of binary neutron star post-merger remnants: a review
• A Local Universe Host for the Repeating Fast Radio Burst FRB 20181030A
• Fast radio bursts and their high-energy counterpart from magnetar magnetospheres
• A radio pulsar phase from SGR J1935+2154 provides clues to the magnetar FRB mechanism
• Distances, Radial Distribution and Total Number of Galactic Supernova Remnants
• Multi-frequency observations of SGR J1935+2154
• Rapid spin changes around a magnetar fast radio burst
• Multiband Detection of Repeating FRB 20180916B
• Fermi-GBM Observations of the SGR J1935+2154 Burst Forest
• Limits on Simultaneous and Delayed Optical Emission from Well-localized Fast Radio Bursts
• The first 7 months of the 2020 X-ray outburst of the magnetar SGR J1935+2154
• Similarity to earthquakes again: periodic radio pulses of the magnetar SGR 1935+2154 are accompanied by aftershocks like fast radio bursts
• Constraining mechanism associated with fast radio burst and glitch from SGR J1935
• Searching for TeV gamma-ray emission from SGR\,1935+2154 during its 2020 X-ray and radio bursting phase
• Finding the Particularity of the Active Episode of SGR J1935+2154 during Which FRB 20200428 Occurred: Implication from Statistics of Fermi/GBM X-Ray Bursts
• Bursts before Burst: A Comparative Study on FRB 200428-associated and FRB-absent X-ray Bursts from SGR J1935+2154
• Continuous gravitational waves from trapped magnetar ejecta and the connection to glitches and antiglitches
• Long-term evolution of non-thermal emission from Type Ia and core-collapse supernova remnants in a diversified circumstellar medium
• Searching for Magnetar Binaries Disrupted by Core-Collapse Supernovae
• Testing afterglow models of FRB 200428 with early post-burst observations of SGR 1935+2154
• High-energy gamma-ray emission from SNR G57.2+0.8 hosting SGR J1935+2154
• Hyper-active repeating fast radio bursts from rotation modulated starquakes on magnetars
• Statistical Properties of X-Ray Bursts from SGR J1935+2154 Detected by Insight-HXMT
• An Intermediate-field Fast Radio Burst Model and the Quasi-periodic Oscillation
• The infrared counterpart and proper motion of magnetar SGR0501+4516
• A search using GEO600 for gravitational waves coincident with fast radio bursts from SGR 1935+2154
• Diverse origins for non-repeating fast radio bursts: Rotational radio transient sources and cosmological compact binary merger remnants
• Deep upper limit on the optical emission during a hard X-ray burst from the magnetar SGR J1935+2154
• An updated view and perspectives on high-energy gamma-ray emission from SGR J1935+2154 and its environment
• A note on the anti-glitch of magnetar SGR 1935+2154
• Multiwavelength Radiation from the Interaction between Magnetar Bursts and Companion Star in a Binary System
• Joint Observation of SGR J1935+2154 with \textit{Insight}-HXMT and KM40m during the active episode of October 2022
• Searching radio signals from two magnetars and a high-magnetic field pulsar and the serendipitous discovery of a new radio pulsar PSR J1935+2200
• Multi-Wavelength Constraints on the Outflow Properties of the Extremely Bright Millisecond Radio Bursts from the Galactic Magnetar SGR 1935+2154
• The Fast Radio Burst-emitting magnetar SGR 1935+2154 -- proper motion and variability from long-term Hubble Space Telescope monitoring