Results 131 to 140 of about 12,515 (261)

New Insights into the T Tauri Binary Separation Distribution

The Astrophysical Journal
For three decades, adaptive optic surveys have revealed an excess of T Tauri binaries across a = 10–100 au in nearby star-forming regions compared to the field population of main-sequence (MS) stars.
Caleb Eastlund, Maxwell Moe, Kaitlin M. Kratter, Marina Kounkel   +3 more
doaj   +1 more source

Internal Motions in the Orion Nebula [PDF]

, 1958
Guido Münch
openalex   +1 more source

Dust in the Orion Nebula [PDF]

Monthly Notices of the Royal Astronomical Society, 1971
K. Nandy, N. C. Wickramasinghe
openaire   +1 more source

Documentation for the machine-readable version of the catalogue of individual UBV and UVBY beta observations in the region of the Orion OB1 association [PDF]

The machine-readable files of individual UBV observations of 106 stars in the vicinity of the Orion Nebula (the Sword region) and individual uvby beta observations of 508 stars in all regions of the Orion OB 1 association are described.
Warren, W. H., Jr.
core   +1 more source

Multi-Observatory Research of Young Stellar Energetic Flares (MORYSEF): X-Ray-flare-related Phenomena and Multi-epoch Behavior

The Astrophysical Journal
The most powerful stellar flares driven by magnetic energy occur during the early pre-main-sequence (PMS) phase. The Orion Nebula represents the nearest region populated by young stars, showing the greatest number of flares accessible to a single ...
Konstantin V. Getman, Eric D. Feigelson, Abygail R. Waggoner, L. Ilsedore Cleeves, Jan Forbrich, Joe P. Ninan, Oleg Kochukhov, Vladimir S. Airapetian, Sergio A. Dzib, Charles J. Law, Christian Rab   +10 more
doaj   +1 more source

Internal Velocities in the Orion Nebula: Large Proper-Motion Features [PDF]

, 2002
Takao Doi, C. R. O’dell, Patrick Hartigan   +2 more
openalex   +1 more source

Observations of the 145.5 micron (OI) emission line in the Orion nebula [PDF]

A first set of observations of the (OI) 3P to 3P1 (145.5 micron) transition was obtained. The line was observed both in a beam centered on the Trapezium, and in a 7 times wider beam encompassing most of the Orion Nebula. A wide beam map of the region was
Harwit, M., Kurtz, N. T., Smyers, S. D., Stacey, G. J.   +3 more
core   +1 more source

Little Red Dots: Rapidly Growing Black Holes Reddened by Extended Dusty Flows

The Astrophysical Journal
The James Webb Space Telescope (JWST) observations have revolutionized extragalactic research, particularly with the discovery of little red dots (LRDs), which have been discovered as a population of dust-reddened broad-line active galactic nuclei (AGNs).
Zhengrong Li, Kohei Inayoshi, Kejian Chen, Kohei Ichikawa, Luis C. Ho   +4 more
doaj   +1 more source

Size distribution of polycyclic aromatic hydrocarbons in space: an old new light on the 11.2/3.3 μm intensity ratio.

Faraday Discuss, 2023
Lemmens AK, Mackie CJ, Candian A, Lee TMJ, Tielens AGGM, Rijs AM, Buma WJ.   +6 more
europepmc   +1 more source

On the character of the chief line of the Nebula in Orion [PDF]

, 1891
K. D. Naegamvala
openalex   +1 more source