A Young Stellar Cluster Surrounding the Peculiar Eruptive Variable V838 Monocerotis

@article{Afcsar2007AYS,
  title={A Young Stellar Cluster Surrounding the Peculiar Eruptive Variable V838 Monocerotis},
  author={Melike Afcsar and Howard E. Bond},
  journal={The Astronomical Journal},
  year={2007},
  volume={133},
  pages={387-393}
}
  • M. Afcsar, H. Bond
  • Published 26 October 2006
  • Physics, Geology
  • The Astronomical Journal
V838 Monocerotis is an unusual variable star that underwent a sudden outburst in 2002. Unlike a classical nova, which quickly evolves to high temperatures, V838 Mon remained an extremely cool, luminous supergiant throughout its eruption. It continues to illuminate a spectacular series of light echoes, as the outburst light is scattered from nearby circumstellar dust. V838 Mon has an unresolved B3 V companion star. During a program of spectroscopic monitoring of V838 Mon, we serendipitously… 

Figures and Tables from this paper

The continued optical to mid-IR evolution of V838 Monocerotis
The eruptive variable V838 Monocerotis gained notoriety in 2002 when it brightened nine magnitudes in a series of three outbursts and then rapidly evolved into an extremely cool supergiant. We
Progenitor and Remnant of the Luminous Red Nova V838 Monocerotis
Abstract —The article presents the results of multicolor photometry, medium and low resolution spectroscopy of the red nova V838 Mon remnant for 16 years after the 2002 outburst. We also used the
High-resolution optical spectroscopy of V838 Monocerotis in 2009
Context. V838 Mon erupted at the beginning of 2002. In the course of the outburst the object evolved to low effective temperatures and declined as a very late M-type supergiant. Among various
Luminous blue variable eruptions and related transients: diversity of progenitors and outburst properties
We present new light curves and optical spectra for a number of extragalactic optical transients or 'supernova impostors' related to giant eruptions of luminous blue variables (LBVs), and we provide
SiO maser astrometry of the red transient V838 Monocerotis
We present multiepoch observations with the Very Long Baseline Array of SiO maser emission in the v = 1, J = 1−0 transition at 43 GHz from the remnant of the red nova V838 Mon. We modeled the
THE RED NOVA-LIKE VARIABLE IN M31—A BLUE CANDIDATE IN QUIESCENCE
M31-RV was an extraordinarily luminous ({approx}10{sup 6} L{sub sun}) eruptive variable, displaying very cool temperatures (roughly 1000 K) as it faded. While this object's peak luminosity matched or
Luminous red novae: Stellar mergers or giant eruptions?
We present extensive datasets for a class of intermediate-luminosity optical transients known as luminous red novae. They show double-peaked light curves, with an initial rapid luminosity rise to a
AN EXTENDED GRID OF NOVA MODELS. III. VERY LUMINOUS, RED NOVAE
Extremely luminous, red eruptive variables like RV in M31 are being suggested as exemplars of a new class of astrophysical objects. Our greatly extended series of nova simulations shows that
Lessons from the Onset of a Common Envelope Episode: the Remarkable M31 2015 Luminous Red Nova Outburst
This paper investigates the recent stellar merger transient M31LRN 2015 in the Andromeda galaxy. We analyze published optical photometry and spectroscopy along with a Hubble Space Telescope detection
The Environment of M85 Optical Transient 2006-1: Constraints on the Progenitor Age and Mass
M85 Optical Transient 2006-1 (M85 OT 2006-1) is the most luminous member of the small family of V838 Mon-like objects, whose nature is still a mystery. This event took place in the Virgo Cluster of
...
...

References

SHOWING 1-10 OF 34 REFERENCES
An energetic stellar outburst accompanied by circumstellar light echoes
TLDR
High-resolution imaging and polarimetry of light echoes indicate that V838 Mon represents a hitherto unknown type of stellar outburst, for which the authors have no completely satisfactory physical explanation.
Nova Sagittarii 1994 1 (V4332 Sagittarii): The Discovery and Evolution of an Unusual Luminous Red Variable Star
We report photometry and spectroscopy of the evolution of Nova Sagittarii 1994 1 (V4332 Sagittarii) during outburst. We compare the photometric and spectral evolution of this outburst with known
V4332 Sagittarii revisited
The eruption of V4332 Sgr discovered in February 1994 shows striking similarities to that of V838 Mon started in January 2002. The nature of these eruptions is, however, enigmatic and unclear. We
V838 Mon: light echo evolution and distance estimate
Following its 2002 February eruption, V838 Mon developed a light echo that continues to expand and evolve as light from the outburst scatters off progressively more distant circumstellar and/or
Hubble Space Telescope Imaging of the Outburst Site of M31?RV*
M31 RV is a luminous red variable star that appeared for several months in the bulge of M31 during 1988. Unlike classical novae, M31 RV was cool throughout its outburst. Interest in this object has
Eruptions of the V838 Mon type: stellar merger versus nuclear outburst models
We discuss various models and scenarios proposed to explain the nature of the V838 Mon type eruptions. In this class of eruptive objects we include: M 31 RV (erupted in 1988), V4332 Sgr (erupted in
NGC 2362: A Template for Early Stellar Evolution
We present UBVRI photometry for the young open cluster NGC 2362. From analysis of the appropriate color-color and color-magnitude diagrams we derive the fundamental parameters of the NGC 2362 cluster
On the progenitor of V838 Monocerotis
We summarize and analyze the available observational data on the progenitor and the environment of V838 Mon. From the available photometric data for the progenitor of V838 Mon we exclude the
Evolution of V838 Monocerotis during and after the 2002 eruption
By fitting the available photometric data on V838 Mon with standard supergiant spectra we have derived principal stellar parameters, i.e. effective temperature, radius and luminosity, and followed
The planets capture model of V838 Monocerotis: conclusions for the penetration depth of the planet(s)
V838 Mon is the prototype of a new class of objects. Understanding the nature of its multistage outburst and similar systems is challenging. So far, several scenarios have been invoked to explain
...
...