# Pre-main-sequence binaries with tidally disrupted discs: the Brγ in HD 104237

@article{Garcia2013PremainsequenceBW,
title={Pre-main-sequence binaries with tidally disrupted discs: the Br$\gamma$ in HD 104237},
author={Paulo J. V. Garcia and Myriam Benisty and C. Dougados and Francesca Bacciotti and J. M. Clausse and F. Massi and Antoine M'erand and Romain G. Petrov and Gerd Weigelt},
journal={Monthly Notices of the Royal Astronomical Society},
year={2013},
volume={430},
pages={1839-1853}
}
• Published 2 January 2013
• Physics
• Monthly Notices of the Royal Astronomical Society
Active pre-main-sequence binaries with separations of around 10 stellar radii present a wealth of phenomena unobserved in common systems. The study of these objects is extended from classical T Tauri stars to the Herbig Ae star HD 104237. The primary has a mass 2.2 ± 0.2 M� and secondary 1.4 ± 0.3 M� . Spectrointerferometry with the VLTI/AMBER in the K-band continuum and the Brγ line is presented. It is found that the K-band continuum squared visibilities are compatible with a circumbinary disc…

## Figures and Tables from this paper

### A resolved, au-scale gas disk around the B[e] star HD 50138

• Physics, Geology
• 2014
HD 50138 is a B[e] star surrounded by a large amount of circumstellar gas and dust. Its spectrum shows characteristics which may indicate either a pre- or a post-main-sequence system. Mapping the

### The far-infrared behaviour of Herbig Ae/Be discs: Herschel PACS photometry

• Physics, Geology
• 2015
Herbig Ae/Be objects are pre-main sequence stars surrounded by gas- and dust-rich circumstellar discs. These objects are in the throes of star and planet formation, and their characterisation informs

### New Binaries in the ϵ Cha Association

• Physics, Geology
• 2017
We present Adaptive Optics-aided speckle observations of 47 young stars in the ϵ Cha association made at the 4 m Southern Astrophysical Research Telescope in the I-band. We resolved 10 new binary

### AMBER/VLTI high spectral resolution observations of the Brγ emitting region in HD 98922 - A compact disc wind launched from the inner disc region

Context. High angular and spectral resolution observations can provide us with fundamental clues to the complex circumstellar structure of young stellar objects (YSOs) and to the physical processes

### Interferometric study on the temporal variability of the brightness distributions of protoplanetary disks

• Physics, Geology
Astronomy & Astrophysics
• 2020
Context. Optical and infrared spatially unresolved multi-epoch observations have revealed the variability of pre-main sequence stars and/or their environment. Moreover, structures in orbital motion

### A CO SURVEY IN PLANET-FORMING DISKS: CHARACTERIZING THE GAS CONTENT IN THE EPOCH OF PLANET FORMATION

• Physics, Geology
• 2014
We carried out a 12CO(3–2) survey of 52 southern stars with a wide range of IR excesses (LIR/L*) using the single-dish telescopes APEX and ASTE. The main aims were (1) to characterize the evolution

### The Degree of Alignment between Circumbinary Disks and Their Binary Hosts

• Physics, Geology
The Astrophysical Journal
• 2019
All four circumbinary (CB) protoplanetary disks orbiting short-period (P < 20 days) double-lined spectroscopic binaries (SB2s)—a group that includes UZ Tau E, for which we present new Atacama Large

### Precession and accretion in circumbinary discs: the case of HD 104237

• Physics, Geology
• 2015
We present the results of smoothed particle hydrodynamics (SPH) simulations of the disc around the young, eccentric stellar binary HD 104237. We find that the binary clears out a large cavity in the

### On the Mass Accretion Rates of Herbig Ae/Be Stars. Magnetospheric Accretion or Boundary Layer?

Understanding how young stars gain their masses through disk-to-star accretion is of paramount importance in astrophysics. It affects our knowledge about the early stellar evolution, the disk

### The interferometric view of Herbig Ae/Be stars

In this contribution I review how optical interferometry has contributed to shaping our understanding of the class of Herbig Ae/Be stars and of their associated circumstellar disks. I discuss the

## References

SHOWING 1-10 OF 74 REFERENCES

### Periodic Accretion from a Circumbinary Disk in the Young Binary UZ Tau E

• Physics, Geology
• 2007
Close pre-main-sequence binary stars are expected to clear central holes in their protoplanetary disks, but the extent to which material can flow from the circumbinary disk across the gap onto the

### X-Ray Flares in Orion Young Stars. II. Flares, Magnetospheres, and Protoplanetary Disks

• Physics, Geology
• 2008
We study the properties of powerful X-ray flares from 161 pre-main-sequence (PMS) stars observed with the Chandra X-ray Observatory in the Orion Nebula region. Relationships between flare properties,

### WALL EMISSION IN CIRCUMBINARY DISKS: THE CASE OF CoKu TAU/4

• Physics, Geology
• 2009
A few years ago, the mid-IR spectrum of a Weak Line T Tauri Star, CoKu Tau/4, was explained as emission from the inner wall of a circumstellar disk, with the inner disk truncated at ∼10 AU. Based on

### Recurring millimeter flares as evidence for star-star magnetic reconnection events in the DQ Tauri PMS binary system

• Physics
• 2010
Observations of the T Tauri spectroscopic binary DQ Tau in April 2008 captured an unusual flare at 3 mm, which peaked at an observed maximum flux of ~0.5 Jy (about 27 times the quiescent value). Here

### Hunting for millimeter flares from magnetic reconnection in pre-main sequence spectroscopic binaries

• Physics
• 2011
Context. Recent observations of the low-mass pre-main sequence (PMS), eccentric spectroscopic binaries DQ Tau and V773 Tau A reveal that their millimeter spectrum is occasionally dominated by flares

### The 2008 outburst in the young stellar system Z CMa I. Evidence of an enhanced bipolar wind on the AU-scale

• Physics
• 2010
Context. Accretion is a fundamental process in star formation. Although the time evolution of accretion remains a matter of debate, observations and modelling studies suggest that episodic outbursts

### On the alignment between the circumstellar disks and orbital planes of Herbig Ae/Be binary systems

• Physics, Geology
• 2011
Context. The majority of the intermediate mass, pre-main-sequence Herbig Ae/Be stars reside in binary systems. As these systems are young, their properties may contain an imprint of the star

### Passive Irradiated Circumstellar Disks with an Inner Hole

• Physics
• 2001
A model for irradiated dust disks around Herbig Ae stars is proposed. The model is based on the flaring disk model given by Chiang and Goldreich in 1997, but with the central regions of the disk

### Evidence for Residual Material in Accretion Disk Gaps: CO Fundamental Emission from the T Tauri Spectroscopic Binary DQ Tauri

• Physics
• 2001
Abstract : We present the discovery of CO fundamental rovibrational emission from the classical T Tauri spectroscopic binary DQ Tau. The high-resolution infrared echelle spectra reveal emission lines

### CAN WE PREDICT THE GLOBAL MAGNETIC TOPOLOGY OF A PRE-MAIN-SEQUENCE STAR FROM ITS POSITION IN THE HERTZSPRUNG–RUSSELL DIAGRAM?

• Physics
• 2012
Zeeman–Doppler imaging studies have shown that the magnetic fields of T Tauri stars can be significantly more complex than a simple dipole and can vary markedly between sources. We collect and