Results 71 to 80 of about 1,150 (163)

Young Stellar Object Jets Magnetocentrifugally Driven by Reconnecting Atmospheric Avalanche Accretion Streams above Inner Circumstellar Disks

The Astrophysical Journal
Fast, collimated jets are ubiquitous features of young stellar objects. They are generally thought to be powered by disk accretion, but the details are debated.
Yisheng Tu, Zhi-Yun Li, Zhaohuan Zhu, Xiao Hu, Chun-Yen Hsu   +4 more
doaj   +1 more source

ERRATUM: "YOUNG STELLAR OBJECTS IN THE MASSIVE STAR FORMING REGION W49". [PDF]

Astrophys J, 2015
Saral G, Hora JL, Willis SE, Koenig XP, Gutermuth RA, Saygac AT.   +5 more
europepmc   +1 more source

Radio Continuum and Water Maser Observations of the High-mass Protostar IRAS 19035+0641 A

The Astrophysical Journal
We present Very Large Array 1.3 cm continuum and 22.2 GHz H _2 O maser observations of the high-mass protostellar object IRAS 19035+0641 A. Our observations unveil an elongated bipolar 1.3 cm continuum structure at scales ≲500 au, which, together with a ...
Tatiana M. Rodríguez, Emmanuel Momjian, Peter Hofner, Anuj P. Sarma, Esteban D. Araya   +4 more
doaj   +1 more source

YOUNG STELLAR OBJECTS IN THE MASSIVE STAR-FORMING REGION W49. [PDF]

Astrophys J, 2015
Saral G, Hora JL, Willis SE, Koenig XP, Gutermuth RA, Saygac AT.   +5 more
europepmc   +1 more source

Young Stellar Objects In Orion B

, 2017
I will discuss our search for young stellar objects in the northern part of the Orion molecular cloud B, where we identify almost 200 young stellar objects that coincide or are located close to sites of active star formation. With the total gas mass of the cloud substructures, we calculate local star formation efficiencies, rates, and the star ...
openaire   +1 more source

Synthetic Modeling of Polarized Dust Emission in Intermediate-mass YSOs. I. Constraining the Role of Iron Inclusions and Inelastic Relaxation on Grain Alignment with ALMA Polarization

The Astrophysical Journal
Iron inclusions embedded inside dust grains play a crucial role in both internal alignment (IA) via Barnett relaxation and external alignment via the MAgnetically Enhanced RAdiative Torque (MRAT) mechanism.
Nguyen Chau Giang, V. J. M. Le Gouellec, Thiem Hoang, A. J. Maury, P. Hennebelle   +4 more
doaj   +1 more source

Dust Polarization of Prestellar and Protostellar Sources in OMC-3

The Astrophysical Journal
We present the Atacama Large Millimeter/submillimeter Array observations of linearly polarized 1.1 mm continuum emission at ∼0.″14 (55 au) resolution and CO ( J = 2−1) emission at ∼1.″5 (590 au) resolution toward one prestellar (MMS 4), four Class 0 (MMS
Yuhua Liu, Satoko Takahashi, Masahiro Machida, Kohji Tomisaka, Josep Miquel Girart, Paul T. P. Ho, Kouichiro Nakanishi, Asako Sato   +7 more
doaj   +1 more source

TESS Investigation—Demographics of Young Exoplanets (TI-DYE). II. A Second Giant Planet in the 17 Myr System HIP 67522

The Astrophysical Journal Letters
The youngest (
Madyson G. Barber, Pa Chia Thao, Andrew W. Mann, Andrew Vanderburg, Mayuko Mori, John H. Livingston, Akihiko Fukui, Norio Narita, Adam L. Kraus, Benjamin M. Tofflemire, Elisabeth R. Newton, Joshua N. Winn, Jon M. Jenkins, Sara Seager, Karen A. Collins, Joseph D. Twicken   +15 more
doaj   +1 more source

ABYSS. II. Identification of Young Stars in Optical SDSS Spectra and Their Properties

The Astronomical Journal
We developed a tool that measures equivalent widths of various lines in low-resolution optical spectra, and it was applied to stellar spectra obtained as part of SDSS-V and LAMOST programs.
Serat Saad, Kaitlyn Lane, Marina Kounkel, Keivan G. Stassun, Ricardo López-Valdivia, Jinyoung Serena Kim, Karla Peña Ramírez, Guy S. Stringfellow, Carlos G. Román-Zúñiga, Jesús Hernández, Scott J. Wolk, Lynne A. Hillenbrand   +11 more
doaj   +1 more source

Spectroscopic constraints on CH₃OH formation: CO mixed with CH₃OH ices towards young stellar objects. [PDF]

Mon Not R Astron Soc, 2015
Penteado EM, Boogert ACA, Pontoppidan KM, Ioppolo S, Blake GA, Cuppen HM.   +5 more
europepmc   +1 more source