Results 51 to 60 of about 2,697 (212)

Mapping Observations of Peptide-like Molecules around Sagittarius B2

open access: yesThe Astrophysical Journal
Peptide-like molecules, which have a close connection with the origin of life, have been detected in the Universe. Mapping observations of HCONH _2 and CH _3 CONH _2 , two of the simplest peptide-like molecules, are performed toward the Sagittarius B2 ...
Siqi Zheng   +9 more
doaj   +1 more source

A checklist of subfamily Scarabaeinae (Coleoptera: Scarabaeidae) from Cambodia

open access: yesJournal of Asia-Pacific Biodiversity, 2021
The checklist of the subfamily Scarabaeinae from Cambodia is provided firstly in here, with distributional records of geographical ranges and record data in bibliography including Cambodia.
Gyu Young Han   +2 more
doaj  

Chemical Cartography of the Sagittarius Stream with Gaia

open access: yesThe Astrophysical Journal
The stellar stream connected to the Sagittarius (Sgr) dwarf galaxy is the most massive tidal stream that has been mapped in the Galaxy, and is the dominant contributor to the outer stellar halo of the Milky Way (MW).
Emily C. Cunningham   +7 more
doaj   +1 more source

Neutron-Capture Element Abundances in Planetary Nebulae

open access: yesGalaxies, 2020
Nebular spectroscopy is a valuable tool for assessing the production of heavy elements by slow neutron(n)-capture nucleosynthesis (the s-process). Several transitions of n-capture elements have been identified in planetary nebulae (PNe) in the last few ...
N. C. Sterling
doaj   +1 more source

Tracing Hot Spot Motion in Sagittarius A* Using the Next-Generation Event Horizon Telescope (ngEHT)

open access: yesGalaxies, 2023
We propose the tracing of the motion of a shearing hot spot near the Sgr A* source through a dynamical image reconstruction algorithm, StarWarps. Such a hot spot may form as the exhaust of magnetic reconnection in a current sheet near the black hole ...
Razieh Emami   +21 more
doaj   +1 more source

Secretarybird Sagittarius serpentarius population trends and ecology: insights from South African citizen science data. [PDF]

open access: yesPLoS ONE, 2014
Data from two long-term citizen science projects were used to examine the status and ecology of a Red List species, the Secretarybird Sagittarius serpentarius (Vulnerable), in South Africa.
Sally D Hofmeyr   +2 more
doaj   +1 more source

Onthophagus (Serrophorus) sagittarius

open access: yes, 2018
3.2.40 Onthophagus (Serrophorus) sagittarius (Fabricius, 1775) Scarabaeus sagittarius Fabricius, 1775, Syst. Ent.: 24 (BMNH). Scarabaeus oryx Fabricius, 1792, Ent. Syst., 1: 56(♂). Copris javanus Fabricius, 1801, Syst. Eleuth., 1: 33. Copris obtusus Wiedeman, 1819, Zool. Mag., 1(3): 158. Copris erectus Wiedeman, 1819, Zool. Mag., 1(3): 157. Onthophagus
Cheung, Kahong   +5 more
openaire   +1 more source

Protostellar Cores in Sagittarius B2 N and M

open access: yesThe Astrophysical Journal
We present 500 and 700 au resolution 1 and 3 mm Atacama Large Millimeter/submillimeter Array observations, respectively, of protostellar cores in protoclusters Sagittarius B2 (Sgr B2) North (N) and Main (M), parts of the most actively star-forming cloud ...
Nazar Budaiev   +8 more
doaj   +1 more source

Tomographic Imaging of the Sagittarius Spiral Arm's Magnetic Field Structure

open access: yesThe Astrophysical Journal
The Galactic global magnetic field is thought to play a vital role in shaping Galactic structures such as spiral arms and giant molecular clouds. However, our knowledge of magnetic field structures in the Galactic plane at different distances is limited,
Yasuo Doi   +18 more
doaj   +1 more source

Polarization in Sagittarius A*

open access: yes, 2000
Invited Article, 5 pages, 1 ...
openaire   +2 more sources

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