Results 1 to 10 of about 86,451 (281)

Recent H-alpha Results on Pulsar B2224+65’s Bow-Shock Nebula, the “Guitar” [PDF]

Journal of Astronomy and Space Sciences, 2016
We used the 4 m Discovery Channel Telescope (DCT) at Lowell observatory in 2014 to observe the Guitar Nebula, an Hα bow-shock nebula around the high-velocity radio pulsar B2224+65.
Timothy Dolch, Shami Chatterjee, Dan P. Clemens, James M. Cordes, Lauren R. Cashmen, Brian W. Taylor   +5 more
doaj   +5 more sources

Circumstellar Disk Accretion Across the Lagoon Nebula: The Influence of Environment and Stellar Mass [PDF]

The Astronomical Journal
Pre-main-sequence disk accretion is pivotal for determining the final stellar properties and the early conditions for close-in planets. We aim to establish the impact of internal (stellar mass) and external (radiation field) parameters on the disk ...
Laura Venuti, Ann Marie Cody, Giacomo Beccari, Luisa M. Rebull, Michael J. Irwin, Apoorva Thanvantri, Sowmya Thanvantri, Silvia H. P. Alencar, Clara O. Leal, Geert Barentsen, Janet E. Drew, Steve B. Howell   +11 more
doaj   +2 more sources

Features of the clinical picture of keratitis in horses with different forms of the course of the disease

Open Veterinary Journal, 2022
Background: Keratitis is a common cause of eye diseases in horses, often resulting in complete loss of vision. Aim: The purpose of the paper is to study the features of the clinical picture of primary and secondary keratitis in horses, depending on the ...
Yuliya Lazareva, Maria Rayisyan, Ekaterina Mironova   +2 more
doaj   +1 more source

Hard X-Ray Observation and Multiwavelength Study of the PeVatron Candidate Pulsar Wind Nebula “Dragonfly”

The Astrophysical Journal, 2023
We studied the PeVatron nature of the pulsar wind nebula (PWN) G75.2+0.1 (“Dragonfly”) as part of our NuSTAR observational campaign of energetic PWNe. The Dragonfly is spatially coincident with LHAASO J2018+3651, whose maximum photon energy is 0.27 PeV ...
Jooyun Woo, Hongjun An, Joseph D. Gelfand, Charles J. Hailey, Kaya Mori, Reshmi Mukherjee, Samar Safi-Harb, Tea Temim   +7 more
doaj   +1 more source

Accelerating Genomic Data Generation and Facilitating Genomic Data Access Using Decentralization, Privacy-Preserving Technologies and Equitable Compensation

Blockchain in Healthcare Today, 2018
In the years since the first human genome was sequenced at a cost of over $3 billion, technological advancements have driven the price below $1,000, making personal genome sequencing affordable to many people. Personal genome sequencing has the potential
Dennis Grishin, Kamal Obbad, Preston Estep, Kevin Quinn, Sarah Wait Zaranek, Alexander Wait Zaranek, Ward Vandewege, Tom Clegg, Nico César, Mirza Cifric, George Church   +10 more
doaj   +1 more source

Effects of Implementing Night Operation Signal Coordination on Arterials

Journal of Advanced Transportation, 2022
Traffic signal coordination, which connects a series of signals along an arterial by various coordination methodologies, has been proven as one of the most cost-effective means for alleviating traffic congestion.
Rui Yue, Guangchuan Yang, Yichen Zheng, Yang Yang, Zong Tian   +4 more
doaj   +1 more source

V1647 Orionis (IRAS 05436-0007) : A New Look at McNeil's Nebula [PDF]

, 2004
We present a study of the newly discovered McNeil's nebula in Orion using the JHKs-band simultaneous observations with the near-infrared (NIR) camera SIRIUS on the IRSF 1.4m telescope.
Baba, D., Fukagawa, M., Kato, D., Kurita, M., Kusakabe, N., Nagashima, C., Nagata, T., Nagayama, T., Nakajima, Y., Ojha, D. K., Sato, S., Sugitani, K., Tamura, M.   +12 more
core   +2 more sources

Nebula-Relay Hypothesis: The Chirality of Biological Molecules in Molecular Clouds

Frontiers in Astronomy and Space Sciences, 2022
The chiral puzzle of biological molecules is thought to be closely related to the origin of life and is still a mystery so far. Previously, we proposed a new model on the origin of life, Nebula-Relay hypothesis, which assumed that the life on Earth ...
Lei Feng, Lei Feng, Lei Feng
doaj   +1 more source

New insights into the outflows from R Aquarii [PDF]

, 2018
R Aquarii is a symbiotic binary surrounded by a large and complex nebula with a prominent curved jet. It is one of the closest known symbiotic systems, and therefore offers a unique opportunity to study the central regions of these systems and the ...
Corradi, R. L. M., Jones, D., Kankare, E., Kankare, J., Kolka, I., Liimets, T., Pursimo, T., Santander-Garcia, M., Sidonio, M., Verro, K., Wilson, P. A.   +10 more
core   +11 more sources

The Real-Time Evolution of V4334 Sgr

Galaxies, 2018
V4334 Sgr (Sakurai’s object) is an enigmatic evolved star that underwent a very late thermal pulse a few years before its discovery in 1996. It ejected a new hydrogen-deficient nebula in the process. The source has been observed continuously since,
Peter A. M. van Hoof, Stefan Kimeswenger, Griet C. Van de Steene, Adam Avison, Albert A. Zijlstra, Lizette Guzman-Ramirez, Falk Herwig, Marcin Hajduk   +7 more
doaj   +1 more source