Results 51 to 60 of about 80,201 (344)

The Nature of Blue Stars with Mid-infrared Excesses in the Large Magellanic Cloud

The Astrophysical Journal Supplement Series, 2023
We present low-resolution optical spectra and classifications of 92 blue objects with mid-infrared excesses in the Large Magellanic Cloud. The majority of these objects were selected with the criteria of U − B < 0 and V < 17 from the potential young ...
Ryoko Ishioka, You-Hua Chu, Austin Edmister, Robert A. Gruendl, Lizhong Zhang, Ju Zhu   +5 more
doaj   +1 more source

FU Orionis resolved by infrared long baseline interferometry at a 2-AU scale

, 1998
We present the first infrared interferometric observations of a young stellar object with a spatial projected resolution better than 2 AU. The observations were obtained with the Palomar Testbed Interferometer. FU Ori exhibits a visibility of V^2 =0.72 +/
A. F. Boden, Allen D. A., B. F. Lane, C. Beichman, C. D. Koresko, D. W. Mobley, F. Malbet, Friedjung M., G. T. Van Belle, Glass I. S., J. K. Wallace, J.-P. Berger, M. M. Colavita, M. Shao, Malbet F., Perryman M. A. C., S. R. Kulkarni, X. P. Pan   +17 more
core   +2 more sources

The VLT-FLAMES Tarantula Survey III: A very massive star in apparent isolation from the massive cluster R136 [PDF]

, 2011
VFTS 682 is located in an active star-forming region, at a projected distance of 29 pc from the young massive cluster R136 in the Tarantula Nebula of the Large Magellanic Cloud.
A. de Koter, A. Herrero, A. Z. Bonanos, Asplund, Barniske, Bonanos, Bonnell, Bosch, Brott, C. J. Evans, Cardelli, Cioni, Crowther, D. J. Lennon, de Wit, E. Bressert, E. Doran, Evans, F. Najarro, Fitzpatrick, G. Gräfener, Gruendl, Gvaramadze, H. Sana, Hillier, Humphreys, I. Soszynski, J. M. Bestenlehner, J. Maíz Apellániz, J. S. Vink, Johansson, K. Friedrich, Kato, Kuiper, Lamb, Martins, Maíz-Apellániz, Meixner, N. Bastian, N. Langer, P. A. Crowther, Parker, Parker, Philp, Udalski, V. Hénault-Brunet, Vink, W. D. Taylor, Yoon, Yorke   +49 more
core   +3 more sources

Bolometric temperatures of young stellar objects

The Astrophysical Journal, 1993
We propose the bolometric temperature T bol as a measure of the circumstellar obscuration and evolutionary development of a young stellar object (YSO). T bol is the temperature of a blackbody having the same mean frequency as the observed continuum spectrum.
P. C. Myers, E. F. Ladd
openaire   +1 more source

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser, Alice Bizeul, Meera Chitlur, Hugo Donato, Jelena Roganovic, Julia E. Vogt, Thomas Kühne   +6 more
wiley   +1 more source

SUBARU Near-Infrared Multi-Color Images of Class II Young Stellar Object, RNO91 [PDF]

, 2007
We conducted sub-arcsecond near-infrared imaging observations of RNO91 with CIAO mounted on the SUBARU 8.2 m telescope. We present our JHK band data along with optical images, which when considered together reveal a complex circumstellar structure.
FUKAGAWA Misato, HAYASHI Masahiko, HAYASHI Saeko S, ISHII Miki, ITOH Yoichi, KUDO Tomoyuki, MAYAMA Satoshi, OASA Yumiko, TAMURA Motohide, 聡 眞山   +9 more
core   +3 more sources

Accretion in Young Stellar/Substellar Objects

The Astrophysical Journal, 2003
We present a study of accretion in a sample of 45 young, low mass objects in a variety of star forming regions and young associations, about half of which are likely substellar. Based primarily on the presence of broad, asymmetric Halpha emission, we have identified 13 objects (~30% of our sample) which are strong candidates for ongoing accretion.
Muzerolle, James, Hillenbrand, Lynne, Calvet, Nuria, Briceno, Cesar, Hartmann, Lee   +4 more
openaire   +2 more sources

A Systematic Review of Evidence on the Clinical Effectiveness of Surveillance Imaging in Children With Medulloblastoma and Ependymoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Surveillance imaging aims to detect tumour relapse before symptoms develop, but it's unclear whether earlier detection of relapse leads to better outcomes in children and young people (CYP) with medulloblastoma and ependymoma. This systematic review aims to identify relevant literature to determine the efficacy of surveillance magnetic ...
Lucy Shepherd, Melissa Taylor, Helen Fulbright, Bob Phillips   +3 more
wiley   +1 more source

Discovery of Jet–Bubble–Disk Interaction: Jet Feedback on a Protoplanetary Disk Via an Expanding Bubble in WSB 52

The Astrophysical Journal
While stellar jets and outflows are fueled by accretion from disks, their direct influence on disks remain unexplored. Here, we revisit Atacama Large Millimeter/submillimeter Array observations of ^12 CO ( J  = 2–1) line emission for the young stellar ...
Masataka Aizawa, Ryuta Orihara, Munetake Momose   +2 more
doaj   +1 more source

Outflow and accretion detections in the young stellar object IRAS 04579+4703

, 2012
We present Submillimeter Array observations of the young stellar object IRAS 04579+4703 in the 1.3 mm continuum and in the 12CO(2-1), 13CO(2-1) and C18O(2-1) lines. The 1.3 mm continuum image reveals a flattened structure with a mass of 13 Msun. The 12CO(
André, Belloche, Beltrán, Beuther, Cesaroni, Chen, Dickman, Draine, Furuya, Garden, Ishii, Jiang, Jin-Long Xu, Jun-Jie Wang, Keto, Lis, Migenes, Molinari, Molinari, Molinari, Myers, Palla, Patel, Qin, Qin, Reid, Sewilo, Sheng-Li Qin, Shepherd, Shu, Sánchez-Monge, Testi, Varricatt, Weintroub, Wouterloot, Wu, Xu, Yamashita, Zhang, Zinnecker   +39 more
core   +1 more source