scholarly journals Investigating Disk Evolution: A High Spatial Resolution Mid‐Infrared Survey of T Tauri Stars

2006 ◽  
Vol 636 (2) ◽  
pp. 932-951 ◽  
Author(s):  
C. McCabe ◽  
A. M. Ghez ◽  
L. Prato ◽  
G. Duchene ◽  
R. S. Fisher ◽  
...  
Keyword(s):  
Spatial Resolution ◽  
High Spatial Resolution ◽  
T Tauri Stars ◽  
Mid Infrared ◽  
T Tauri ◽  
Disk Evolution ◽  
Infrared Survey

scholarly journals A mid-infrared interferometric survey of the planet-forming region around young Sun-like stars

2018 ◽  
Vol 14 (S345) ◽  
pp. 128-131
Author(s):  
József Varga ◽  
Péter Ábrahám ◽  
Lei Chen ◽  
Thorsten Ratzka ◽  
K. É. Gabányi ◽  
...  
Keyword(s):  
Spectral Feature ◽  
Circumstellar Disks ◽  
T Tauri Stars ◽  
Band Spectrum ◽  
Intermediate Mass ◽  
Mid Infrared ◽  
Disk Structure ◽  
T Tauri ◽  
General Difference ◽  
Herbig Ae Stars

AbstractWe present our results from a mid-infrared interferometric survey targeted at the planet-forming region in the circumstellar disks around low- and intermediate-mass young stars. Our sample consists of 82 objects, including T Tauri stars, Herbig Ae stars, and young eruptive stars. Our main results are: 1) Disks around T Tauri stars are similar to those around Herbig Ae stars, but are relatively more extended once we account for stellar luminosity. 2) From the distribution of the sizes of the mid-infrared emitting region we find that inner dusty disk holes may be present in roughly half of the sample. 3) Our analysis of the silicate spectral feature reveals that the dust in the inner ~1 au region of disks is generally more processed than that in the outer regions. 4) The dust in the disks of T Tauri stars typically show weaker silicate emission in the N band spectrum, compared to Herbig Ae stars, which may indicate a general difference in the disk structure. Our data products are available at VizieR, and at the following web page: http://konkoly.hu/MIDI_atlas.

scholarly journals High Spatial Resolution Mid-Infrared Observations of Three Seyfert Galaxies

2003 ◽  
Vol 126 (1) ◽  
pp. 143-152 ◽  
Author(s):  
B. T. Soifer ◽  
J. J. Bock ◽  
K. Marsh ◽  
G. Neugebauer ◽  
K. Matthews ◽  
...  
Keyword(s):  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Seyfert Galaxies ◽  
Mid Infrared ◽  
Infrared Observations

scholarly journals High spatial resolution of the mid-infrared emission of the Compton-thick type 2 Seyfert galaxy, Markarian 3

2014 ◽  
Vol 441 (1) ◽  
pp. 630-639 ◽  
Author(s):  
Dinalva A. Sales ◽  
D. Ruschel-Dutra ◽  
M. G. Pastoriza ◽  
R. Riffel ◽  
Cláudia Winge
Keyword(s):  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Seyfert Galaxy ◽  
Infrared Emission ◽  
Mid Infrared

scholarly journals THEHERSCHELDIGIT SURVEY OF WEAK-LINE T TAURI STARS: IMPLICATIONS FOR DISK EVOLUTION AND DISSIPATION

2012 ◽  
Vol 762 (2) ◽  
pp. 100 ◽  
Author(s):  
Lucas A. Cieza ◽  
Johan Olofsson ◽  
Paul M. Harvey ◽  
Neal J. Evans ◽  
Joan Najita ◽  
...  
Keyword(s):  
T Tauri Stars ◽  
Weak Line ◽  
T Tauri ◽  
Disk Evolution

scholarly journals VLTI/MIDI atlas of disks around low- and intermediate-mass young stellar objects

2018 ◽  
Vol 617 ◽  
pp. A83 ◽  
Author(s):  
J. Varga ◽  
P. Ábrahám ◽  
L. Chen ◽  
Th. Ratzka ◽  
K. É. Gabányi ◽  
...  
Keyword(s):  
Spatial Information ◽  
Thermal Emission ◽  
T Tauri Stars ◽  
Young Stellar Objects ◽  
Intermediate Mass ◽  
Disk Model ◽  
Mid Infrared ◽  
Disk Structure ◽  
T Tauri ◽  
Silicate Feature

Context. Protoplanetary disks show large diversity regarding their morphology and dust composition. With mid-infrared interferometry the thermal emission of disks can be spatially resolved, and the distribution and properties of the dust within can be studied. Aims. Our aim is to perform a statistical analysis on a large sample of 82 disks around low- and intermediate-mass young stars, based on mid-infrared interferometric observations. We intend to study the distribution of disk sizes, variability, and the silicate dust mineralogy. Methods. Archival mid-infrared interferometric data from the MIDI instrument on the Very Large Telescope Interferometer are homogeneously reduced and calibrated. Geometric disk models are used to fit the observations to get spatial information about the disks. An automatic spectral decomposition pipeline is applied to analyze the shape of the silicate feature. Results. We present the resulting data products in the form of an atlas, containing N band correlated and total spectra, visibilities, and differential phases. The majority of our data can be well fitted with a continuous disk model, except for a few objects, where a gapped model gives a better match. From the mid-infrared size–luminosity relation we find that disks around T Tauri stars are generally colder and more extended with respect to the stellar luminosity than disks around Herbig Ae stars. We find that in the innermost part of the disks (r ≲ 1 au) the silicate feature is generally weaker than in the outer parts, suggesting that in the inner parts the dust is substantially more processed. We analyze stellar multiplicity and find that in two systems (AB Aur and HD 72106) data suggest a new companion or asymmetric inner disk structure. We make predictions for the observability of our objects with the upcoming Multi-AperTure mid-Infrared SpectroScopic Experiment (MATISSE) instrument, supporting the practical preparations of future MATISSE observations of T Tauri stars.

scholarly journals Mid‐infrared Spectroscopy of Disks around Classical T Tauri Stars

2004 ◽  
Vol 154 (1) ◽  
pp. 443-447 ◽  
Author(s):  
W. J. Forrest ◽  
B. Sargent ◽  
E. Furlan ◽  
P. D’Alessio ◽  
N. Calvet ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
T Tauri Stars ◽  
Mid Infrared ◽  
Mid Infrared Spectroscopy ◽  
T Tauri

scholarly journals High Spatial Resolution Mid‐Infrared Observations of Five Seyfert Galaxies

2004 ◽  
Vol 116 (820) ◽  
pp. 493-496 ◽  
Author(s):  
B. T. Soifer ◽  
G. Neugebauer ◽  
K. Matthews ◽  
E. Egami ◽  
L. Armus
Keyword(s):  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Seyfert Galaxies ◽  
Mid Infrared ◽  
Infrared Observations

scholarly journals TRACING HIGH-ENERGY RADIATION FROM T TAURI STARS USING MID-INFRARED NEON EMISSION FROM DISKS

2012 ◽  
Vol 762 (1) ◽  
pp. 62 ◽  
Author(s):  
C. Espaillat ◽  
L. Ingleby ◽  
E. Furlan ◽  
M. McClure ◽  
A. Spatzier ◽  
...  
Keyword(s):  
High Energy ◽  
T Tauri Stars ◽  
Mid Infrared ◽  
High Energy Radiation ◽  
Energy Radiation ◽  
T Tauri

scholarly journals Multi-epoch observations with high spatial resolution of multiple T Tauri systems

2017 ◽  
Vol 603 ◽  
pp. A74 ◽  
Author(s):  
Gergely Csépány ◽  
Mario van den Ancker ◽  
Péter Ábrahám ◽  
Rainer Köhler ◽  
Wolfgang Brandner ◽  
...  
Keyword(s):  
Spatial Resolution ◽  
High Spatial Resolution ◽  
T Tauri
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