IRC-10414: a bow-shock-producing red supergiant star

Abstract

Most runaway OB stars, like the majority of massive stars residing in their parent clusters, go through the red supergiant (RSG) phase during their lifetimes. Nonetheless, although many dozens of massive runaways were found to be associated with bow shocks, only two RSG bow-shock-producing stars, Betelgeuse and μCep, are known to date. In this paper, we report the discovery of an arc-like nebula around the late M-type star IRC-10414 using the SuperCOSMOS H-alpha Survey. Our spectroscopic follow-up of IRC-10414 with the Southern African Large Telescope (SALT) showed that it is a M7 supergiant, which supports previous claims on the RSG nature of this star based on observations of its maser emission. This was reinforced by our new radio- and (sub)millimeter-wavelength molecular line observations made with the Atacama Pathfinder Experiment (APEX) 12 meter telescope and the Effelsberg 100 m radio telescope, respectively. The SALT spectrum of the nebula indicates that its emission is the result of shock excitation. This finding along with the arc-like shape of the nebula and an estimate of the space velocity of IRC-10414 (\approx 70\pm20 km/s) imply the bow shock interpretation for the nebula. Thus, IRC-10414 represents the third case of a bow-shock-producing RSG and the first one with a bow shock visible at optical wavelengths. We discuss the smooth appearance of the bow shocks around IRC-10414 and Betelgeuse and propose that one of the necessary conditions for stability of bow shocks generated by RSGs is the ionization of the stellar wind. Possible ionisation sources of the wind of IRC-10414 are proposed and discussed.

arXiv comment15 pages, 8 figures, accepted for publication in MNRAS

References in corpus (72)

• The chemical composition of the Sun
• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• The Infrared Array Camera (IRAC) for the Spitzer Space Telescope
• Embedded Clusters in Molecular Clouds
• Local Kinematics and the Local Standard of Rest
• Grids of stellar models with rotation - I. Models from 0.8 to 120 Msun at solar metallicity (Z = 0.014)
• GLIMPSE: I. A SIRTF Legacy Project to Map the Inner Galaxy
• The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)
• A new calibration of stellar parameters of Galactic O stars
• Color Transformations for the 2MASS Second Incremental Data Release
• Physical Properties of Wolf-Rayet Stars
• Rotating Massive Main-Sequence Stars I: Grids of Evolutionary Models and Isochrones
• The Effective Temperature Scale of Galactic Red Supergiants: Cool, But Not As Cool As We Thought
• The Formation of a Bound Star Cluster: From the Orion Nebula Cluster to the Pleiades
• A Robotic Wide-Angle H-Alpha Survey of the Southern Sky
• An empirical formula for the mass-loss rates of dust-enshrouded red supergiants and oxygen-rich Asymptotic Giant Branch stars
• The Distance to the Perseus Spiral Arm in the Milky Way
• The Aao/Ukst Supercosmos H-alpha Survey (SHS)
• A Trigonometric Parallax of Sgr B2
• The mass-loss rates of red supergiants and the de Jager prescription
• The Galactic WC stars: Stellar parameters from spectral analyses indicate a new evolutionary sequence
• A far-infrared survey of bow shocks and detached shells around AGB stars and red supergiants
• Variability in red supergiant stars: pulsations, long secondary periods and convection noise
• The VLT-FLAMES Survey of Massive Stars: Observations in the Galactic Clusters NGC 3293, NGC 4755 and NGC 6611
• First science with SALT: peering at the accreting polar caps of the eclipsing polar SDSS J015543.40+002807.2
• Discovery of 35 New Supernova Remnants in the Inner Galaxy
• Spitzer SAGE-SMC Infrared Photometry of Massive Stars in the Small Magellanic Cloud
• The temperatures of Red Supergiants
• Trigonometric Parallaxes of Massive Star Forming Regions: VIII. G12.89+0.49, G15.03-0.68 (M17) and G27.36-0.16
• The dust condensation sequence in red super-giant stars
• The characteristics of high velocity O and B stars which are ejected from supernovae in binary systems
• On the origin of high-velocity runaway stars
• The interaction of planetary nebulae and their AGB progenitors with the interstellar medium
• E-BOSS: an Extensive stellar BOw Shock Survey. I: Methods and First Catalogue
• Search for OB stars running away from young star clusters. I. NGC 6611
• Kinematics of OB-associations and the new reduction of the Hipparcos data
• The enigmatic nature of the circumstellar envelope and bow shock surrounding Betelgeuse as revealed by Herschel. I. Evidence of clumps, multiple arcs, and a linear bar-like structure
• Chemical composition and origin of nebulae around Luminous Blue Variables
• Construction of a Calibrated Probabilistic Classification Catalog: Application to 50k Variable Sources in the All-Sky Automated Survey
• The ATCA/VLA OH 1612 MHz survey. III. Northern Galactic Plane
• Field O stars: formed in situ or as runaways?
• Computing the dust distribution in the bowshock of a fast moving, evolved star
• The radio surface brightness to diameter relation for galactic supernova remnants: sample selection and robust analysis with various fitting offsets
• Late-Type Red Supergiants: Too Cool for the Magellanic Clouds?
• Discovery of a bow shock around Vela X-1
• Detection of nonthermal emission from the bow shock of a massive runaway star
• The metallicity extremes of the Sagittarius dSph using SALT spectroscopy of PNe
• The Conspicuous Absence of X-ray Emission from Carbon-Enriched Wolf-Rayet Stars
• 3D Simulations of Betelgeuse's Bow Shock
• Interstellar Weather Vanes: GLIMPSE Mid-Infrared Stellar-Wind Bowshocks in M17 and RCW49
• The Period-Luminosity Relation of Red Supergiant Stars in the Small Magellanic Cloud
• Search for OB stars running away from young star clusters. II. The NGC 6357 star-forming region
• Two step ejection of massive stars and the issue of their formation in isolation
• OB Stars & Stellar Bowshocks in Cygnus-X: A Novel Laboratory Estimating Stellar Mass Loss Rates
• Supergiant Temperatures and Linear Radii from Near-Infrared Interferometry
• Self-Consistent Dynamic Models of Steady Ionization Fronts I. Weak-D and Weak-R Fronts
• A multi-wavelength study of Supernova Remnants in six nearby galaxies. II. New optically selected Supernova Remnants
• Vortices in the wakes of AGB stars
• Characterization of the Nearby L/T Binary Brown Dwarf WISE J104915.57-531906.1 at 2 Parsecs from the Sun
• Double bow shocks around young, runaway red supergiants: application to Betelgeuse
• Massive runaway stars in the Large Magellanic Cloud
• Discovery of a detached HI gas shell surrounding alpha Orionis
• PFP 1: A Large Annular Planetary Nebula Caught in the First Stages of ISM Interaction
• AE Aurigae: first detection of non-thermal X-ray emission from a bow shock produced by a runaway star
• Massive runaway stars in the Small Magellanic Cloud
• Discovery of a parsec-scale bipolar nebula around MWC 349A
• SiO maser emission from red supergiants across the Galaxy: I. Targets in massive star clusters
• 4U 1907+09: a HMXB running away from the Galactic plane
• The Antares emission nebula and mass loss of alpha Sco A
• Two massive stars possibly ejected from NGC 3603 via a three-body encounter
• HD271791: dynamical versus binary-supernova ejection scenario
• First detection of optical light from SNR G279.0+1.1

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