Results 1 to 10 of about 110,738 (286)
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 +5 more
doaj +5 more sources
Circumstellar Disk Accretion Across the Lagoon Nebula: The Influence of Environment and Stellar Mass [PDF]
The Astronomical JournalPre-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 +11 more
doaj +2 more sources
JWST/NIRCam Imaging of the Bipolar Planetary Nebula NGC 6537: The (Infra)red Spider, Revealed
The Astrophysical JournalWe present James Webb Space Telescope (JWST) Near-Infrared Camera (NIRCam) Br α , H _2 , [Fe ii ], and polycyclic aromatic hydrocarbon (PAH) imaging of the molecule-rich, high-excitation bipolar planetary nebula (PN) NGC 6537 (the Red Spider ...
Joel H. Kastner +7 more
doaj +2 more sources
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 +2 more
doaj +1 more source
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 +7 more
doaj +1 more source
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
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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 +10 more
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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 +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. +12 more
core +2 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 +7 more
doaj +1 more source