Searching for Surviving Companion in the Young SMC Supernova Remnant 1E 0102.2-7219

Abstract

1E 0102.2--7219 (hereafter E0102) is a young supernova remnant (SNR) in the Small Magellanic Cloud (SMC). It contains oxygen-rich SN ejecta, a possible neutron star (NS), and a small amount of fast-moving H-rich ejecta material. These properties are also seen in Cas A, it has thus been suggested that E0102 is also a Type IIb SNR, whose SN progenitor's hydrogen envelope was stripped off possibly via interactions with a companion star. To search for a surviving companion of E0102's SN progenitor, we have used archival Hubble Space Telescope (HST) continuum images to make photometric measurements of stars projected in the SNR to construct color-magnitude diagrams and compare the stars with those expected from surviving companions of Type IIb SNe. We have also used the Multi-Unit Spectroscopic Explorer observations taken with the Very Large Telescope to perform spectroscopic analyses of stars and search for peculiar radial velocities as diagnostics of surviving companions. We further use the HST and Gaia data to inspect proper motions of stars for complementary kinetic studies. No plausible companion candidates are found if the SN explosion site was near the NS, while the B3 V star 34a may be a plausible companion candidate if the SN explosion site is near the SN ejecta's expansion center. If the NS is real and associated with E0102, it needs a ~1000 km/s runaway velocity, which has been observed in other SNRs and can be acquired from an asymmetric SN explosion or a kick by the SN explosion of a massive companion.

17 pages, 5 tables, 7 figures, accepted for publication in The Astrophysical Journal (ApJ)

References in corpus (27)

• Array Programming with NumPy
• The NumPy array: a structure for efficient numerical computation
• Binary interaction dominates the evolution of massive stars
• Astrophysics Source Code Library
• Binary Population and Spectral Synthesis Version 2.1: construction, observational verification and new results
• The Cassiopeia A Supernova was of Type IIB
• Toward Complete Statistics of Massive Binary Stars: Penultimate Results from the Cygnus OB2 Radial Velocity Survey
• The Panchromatic Hubble Andromeda Treasury X. Ultraviolet to Infrared Photometry of 117 Million Equidistant Stars
• Gaia Early Data Release 3: Summary of the contents and survey properties
• The type IIb SN 2008ax: the nature of the progenitor
• Uncovering the Putative B-Star Binary Companion of the SN 1993J Progenitor
• A Blue Point Source at the Location of Supernova 2011dh
• Maximum speed of hypervelocity stars ejected from binaries
• Discovery of an OB Runaway Star Inside SNR S147
• First Gaia Local Group Dynamics: Magellanic Clouds Proper Motion and Rotation
• On the Progenitor of the Type IIb Supernova 2016gkg
• Optical Structure and Proper-Motion Age of the Oxygen-rich Supernova Remnant 1E 0102-7219 in the Small Magellanic Cloud
• Swift, XMM-Newton, and NuSTAR observations of PSR J2032+4127/MT91 213
• Progenitors of Type IIb Supernovae: II. Observable Properties
• Formation pathway for lonely stripped-envelope supernova progenitors: implications for Cassiopeia A
• The Proper Motion of the Central Compact Object RX J0822-4300 in the Supernova Remnant Puppis A, Revisited
• Physical Structures of the Type Ia Supernova Remnant N103B
• [Fe XIV] and [Fe XI] reveal the forward shock in SNR 1E0102.2-7219
• A Detailed Archival CHANDRA Study of the Young Core-Collapse Supernova Remnant 1E 0102.2-7219 in the Small Magellanic Cloud
• The Center of Expansion and Age of the Oxygen-rich Supernova Remnant 1E 0102.2-7219
• SPB stars in the open SMC cluster NGC 371
• On the X-ray Properties of the Putative Central Compact Object in 1E 0102.2-7219

Cited by in corpus (1)

• HST Proper Motion Measurements of Supernova Remnant N132D: Center of Expansion and Age