Results 11 to 20 of about 32,885 (244)

An 8 h characteristic time-scale in submillimetre light curves of Sagittarius A* [PDF]

open access: bronzeMonthly Notices of the Royal Astronomical Society, 2014
Jason Dexter   +2 more
exaly   +2 more sources

Unexpected discovery of a new Podonychus species in Kyushu, Japan (Coleoptera, Elmidae, Elminae, Macronychini) [PDF]

open access: yesZooKeys, 2020
Podonychus gyobu sp. nov., a second species of the genus Podonychus Jäch & Kodada, 1997, hitherto known only from Indonesia, is described from Kyushu, Japan. This new species is similar to P.
Hiroyuki Yoshitomi, Masakazu Hayashi
doaj   +3 more sources

Review of Palaearctic species of the Dolichopus sagittarius group Loew, 1848 (Diptera: Dolichopodidae), with description of a new species from Kazakhstan [PDF]

open access: yesКавказский энтомологический бюллетень, 2013
Type specimen of Dolichopus sagittarius Loew, 1848, D. reichardti Stackelberg, 1930, D. grunini Smirnov, 1948 and D. portentosus Negrobov, 1973 are examined and male genitalia are illustrated for the first time.
O.P. Negrobov   +2 more
doaj   +1 more source

Finding halo streams with a pencil-beam survey: new wraps in the Sagittarius stream [PDF]

open access: yes, 2013
We use data from two CFHT-MegaCam photometric pencil-beam surveys in the g' and the r' bands to measure distances to the Sagittarius, the Palomar 5 and the Orphan stream.
de Jong, J. T. A.   +4 more
core   +3 more sources

SELECTING SAGITTARIUS: IDENTIFICATION AND CHEMICAL CHARACTERIZATION OF THE SAGITTARIUS STREAM [PDF]

open access: yesThe Astrophysical Journal, 2015
Wrapping around the Milky Way, the Sagittarius stream is the dominant substructure in the halo. Our statistical selection method has allowed us to identify 106 highly likely members of the Sagittarius stream. Spectroscopic analysis of metallicity and kinematics of all members provides us with a new mapping of the Sagittarius stream.
E. A. Hyde   +13 more
openaire   +6 more sources

Kinematics of the outer pseudorings and the spiral structure of the Galaxy [PDF]

open access: yes, 2008
The kinematics of the outer rings and pseudorings is determined by two processes: the resonance tuning and the gas outflow. The resonance kinematics is clearly observed in the pure rings, while the kinematics of the gas outflow is manifested itself in ...
A. Cabrera-Lavers   +48 more
core   +2 more sources

What Does the Milky Way Look Like?

open access: yesThe Astrophysical Journal, 2023
In spite of much work, the overall spiral structure morphology of the Milky Way remains somewhat uncertain. In the last two decades, accurate distance measurements have provided us with an opportunity to solve this issue.
Y. Xu   +7 more
doaj   +1 more source

A Virtualization Approach to Correct Systematic Errors in Measured TDOA and FDOA for Low Orbit Dual-Satellite Positioning Systems

open access: yesInternational Journal of Antennas and Propagation, 2021
The low-orbit dual-satellite passive location system provides a cost-efficient and easy implementation platform, by which positions of unknown emitters on the Earth can be determined through measuring both the time and the frequency differences by two ...
Gang Li   +3 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   +1 more source

Whiting 1: Confirmation of its accretion by the Milky Way

open access: yesEPJ Web of Conferences, 2017
We investigate the association of Whiting 1 with the Sagittarius tidal stream by obtaining radial velocities for a sample of 101 stars observed with VIMOS.
Carballo-Bello Julio A.   +6 more
doaj   +1 more source

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