English
Related papers

Related papers: Windows through the Dusty Disks Surrounding the Yo…

200 papers

The Orion Nebula Cluster (ONC) hosts protoplanetary disks experiencing external photoevaporation by the cluster's intense UV field. These ``proplyds" are comprised of a disk surrounded by an ionization front. We present ALMA Band 3 (3.1 mm)…

Understanding the evolution and dissipation of protoplanetary disks are crucial in star and planet formation studies. We report the protoplanetary disk population in the nearby young $\sigma$ Orionis cluster (d$\sim$408 pc; age$\sim$1.8…

Solar and Stellar Astrophysics · Physics 2023-05-30 Belinda Damian , Jessy Jose , Beth Biller , KT Paul

The unprecedented angular resolution and sensitivity of ALMA makes it possible to unveil disk populations in distant ($>$2 kpc), embedded young cluster environments. We have conducted an observation towards the central region of the massive…

Astrophysics of Galaxies · Physics 2022-12-07 Yu Cheng , Jonathan C. Tan , John J. Tobin , Ruben Fedriani , Morten Andersen , Junfeng Wang

The nature of far-infrared dust emission toward main sequence stars, whether interstellar or circumstellar, can be deduced from submillimeter photometry. We present JCMT/SCUBA flux measurements at 850 microns toward 8 stars with large…

Astrophysics · Physics 2008-11-26 Jonathan P. Williams , Sean M. Andrews

(Aims) Near-infrared imaging polarimetry at high-angular resolutions has revealed intriguing distribution of circumstellar dust towards FU Ori-type objects (FUors). These dust grains are probably associated with either an accretion disk or…

Solar and Stellar Astrophysics · Physics 2023-11-01 Michihiro Takami , Pin-Gao Gu , Gilles Otten , Christian Delacroix , Sheng-Yuan Liu , Shiang-Yu Wang , Jennifer Karr

We have observed the CCH (N=3-2, J=7/2-5/2, F=4-3 and 3-2) and SO (6_7-5_6) emission at a 0"2 angular resolution toward the low-mass Class 0 protostellar source IRAS 15398-3359 with ALMA. The CCH emission traces the infalling-rotating…

Solar and Stellar Astrophysics · Physics 2018-09-19 Yuki Okoda , Yoko Oya , Nami Sakai , Yoshimasa Watanabe , Jes K. Jørgensen , Ewine F. van Dishoeck , Satoshi Yamamoto

We report the results of a survey of low mass Class I protostars in the cm continuum. In the initial survey, seven sources in the Taurus star formation were observed with the VLA at 0``.25 resolution. All seven sources drive CO outflows and…

Astrophysics · Physics 2015-06-24 P. W. Lucas , Katherine M. Blundell , P. F. Roche

Recent ALMA observations with 0''.1 resolution reveal characteristic substructures in circumstellar disks around young Class I sources, providing clues to the early stages of morphological disk evolution. In this paper, we applied PRIISM…

Earth and Planetary Astrophysics · Physics 2026-01-15 Ayumu Shoshi , Masayuki Yamaguchi , Mitsuki Omura , Kazuki Tokuda , Naofumi Fukaya , Kengo Tachihara , Masahiro. N. Machida

JWST/MIRI has sharpened our infrared eyes toward the star formation process. This paper presents the first mid-infrared detection of gaseous SO$_2$ emission in an embedded low-mass protostellar system. MIRI-MRS observations of the low-mass…

Mid-infrared arcs of dust emission are often seen near ionizing stars within HII regions. A possible explanations for these arcs is that they could show the outer edges of asymmetric stellar wind bubbles. We use two-dimensional,…

We present theoretical continuum emission spectra (SED's), isophotal maps and line profiles for several models of photoevaporating disks at different orientations with respect to the observer. The hydrodynamic evolution of these models has…

Astrophysics · Physics 2007-05-23 Olaf Kessel , Harold W. Yorke , Sabine Richling

Using the United Kingdom Infrared Telescope on Mauna Kea, we have carried out a new near-infrared J, H, K monitoring survey of almost a square degree of the star-forming Orion Nebula Cluster with observations on 120 nights over three…

Solar and Stellar Astrophysics · Physics 2015-10-14 Thomas S. Rice , Bo Reipurth , Scott J. Wolk , Luiz Paulo Vaz , N. J. G. Cross

The optically invisible infrared-source NGC 2264 IRS 1 is thought to be a massive young stellar object (~10 Msun). Although strong infrared excess clearly shows that the central object is surrounded by large amounts of circumstellar…

Solar and Stellar Astrophysics · Physics 2015-05-28 R. Grellmann , Th. Ratzka , S. Kraus , H. Linz , Th. Preibisch , G. Weigelt

External FUV irradiation of protoplanetary disks has an important impact on their evolution and ability to form planets. However, nearby (<300 pc) star-forming regions lack sufficiently massive young stars, while the Trapezium Cluster and…

Earth and Planetary Astrophysics · Physics 2023-05-03 S. E. van Terwisga , A. Hacar

We report the discovery of jets emanating from pre-main-sequence objects exclusively at mid-infrared wavelengths, enabled by the superb sensitivity of JWST's Mid-InfraRed Medium-Resolution Spectrometer (MIRI MRS) instrument. These jets are…

Solar and Stellar Astrophysics · Physics 2024-09-10 Mary Barsony , Michael E. Ressler , Valentin J. M. Le Gouellec , Łukasz Tychoniec , Martijn L. van Gelder

(Abridged) Far-infrared Herschel-PACS spectra of 18 low-mass protostars of various luminosities and evolutionary stages are studied. We quantify their far-infrared line emission and the contribution of different atomic and molecular species…

We report the discovery of diffuse ultraviolet light around late-type galaxies out to 5-20 kpc from the midplane using Swift and GALEX images. The emission is consistent with the stellar outskirts in the early-type galaxies but not in the…

Astrophysics of Galaxies · Physics 2015-06-18 Edmund Hodges-Kluck , Joel Bregman

We present new mid-infrared interferometric observations of the massive young stellar object IRAS 13481-6124, using VLTI/MIDI for spectrally-resolved, long-baseline measurements (projected baselines up to $\sim120$ m) and GSO/T-ReCS for…

Using infrared photometric data extracted from the 2MASS, IRAS and MSX databases, 142 suspected young stellar objects (YSOs) are selected from about 2 million stars in the Camelopardalis segment of the Milky Way limited by Galactic…

Astrophysics · Physics 2009-06-25 V. Straizys , V. Laugalys