Results 41 to 50 of about 80,201 (344)

BST1047+1156: A (Failing) Ultradiffuse Tidal Dwarf in the Leo I Group

open access: yesThe Astrophysical Journal
We use deep Hubble Space Telescope imaging to study the resolved stellar populations in BST1047+1156, a gas-rich, ultradiffuse dwarf galaxy found in the intragroup environment of the Leo I galaxy group.
J. Christopher Mihos   +4 more
doaj   +1 more source

Spectroscopic Monitoring Observations of Nova V1724 Aql in 2012

open access: yesActa Polytechnica CTU Proceedings, 2015
Spectroscopic and photometric monitoring observations of nova Apl 2012 (V1724 Apl) were conducted at Koyama Astronomical Observatory, Fujii-Kurosaki Observatory and Bisei Astronomical Observatory.
T. Kajikawa   +7 more
doaj   +1 more source

Turbulent mixing layers in supersonic protostellar outflows, with application to DG Tauri [PDF]

open access: yes, 2015
Turbulent entrainment processes may play an important role in the outflows from young stellar objects at all stages of their evolution. In particular, lateral entrainment of ambient material by high-velocity, well-collimated protostellar jets may be the ...
Bicknell, Geoffrey V.   +4 more
core   +3 more sources

Kinematics of Young Stellar Objects under Various Stellar Feedback

open access: yesThe Astrophysical Journal Supplement Series
Abstract Based on the Gaia Data Release 3 and APOGEE data sets, we investigate the kinematic differences between young stellar objects (YSOs) and their parent clouds in five nearby star-forming regions. Overall, the one-dimensional velocity differences between Class II YSOs and their parent molecular cloud range from [0, 1.4] km s−1.
Longhui Yang   +8 more
openaire   +3 more sources

Magnetospheric outflows in young stellar objects [PDF]

open access: yesEPJ Web of Conferences, 2014
Different classes of outflows are associated with the magnetospheric activity of accreting T Tauri protostars. Stellar winds are accelerated along the open field lines anchored in the stellar surface; disk winds (extended or X-type) can be launched along the open magnetic surfaces threading the accretion disk; another type of ejection can arise from ...
openaire   +2 more sources

Stereotactic Body Radiation Therapy for Pediatric, Adolescent, and Young Adult Patients With Osteosarcoma: Local Control Outcomes With Dosimetric Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Osteosarcoma is a radioresistant tumor that may benefit from stereotactic body radiation therapy (SBRT) for locoregional control in metastatic/recurrent disease. We report institutional practice patterns, outcomes, toxicity, and failures in osteosarcoma patients treated with SBRT.
Jenna Kocsis   +13 more
wiley   +1 more source

A Robust Young Stellar Object Identification Method Based on Deep Learning

open access: yesThe Astrophysical Journal Supplement Series
Young stellar objects (YSOs) represent the earliest stage in the process of star formation, offering insights that contribute to the development of models elucidating star formation and evolution.
Lei Tan   +6 more
doaj   +1 more source

The Remarkable Mid-Infrared Jet of Massive Young Stellar Object G35.20-0.74

open access: yes, 2006
The young massive stellar object G35.20-0.74 was observed in the mid-infrared using T-ReCS on Gemini South. Previous observations have shown that the near infrared emission has a fan-like morphology that is consistent with emission from the northern lobe
Forster J. R.   +4 more
core   +1 more source

Spectroscopy of Close Companions to QSOs and the Ages of Interaction-Induced Starbursts [PDF]

open access: yes, 1997
We present low-resolution absorption-line spectra of three candidate close ( < 3 arcsec) companions to the low redshift QSOs 3CR 323.1, PG 1700+518, and PKS 2135-147.
Alan Stockton   +4 more
core   +2 more sources

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed   +5 more
wiley   +1 more source

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