Results 111 to 120 of about 22,516,931 (210)
, 2021 Hydrochus sagittarius Perkins Figs. 2, 32 Hydrochus sagittarius Perkins 2019: 20. Originally described from Venezuela. Additional locality data records reported from Peru (Perkins, 2020c). The following specimen records are from Panama. Images of the habitus and male genitalia of the holotype are given in Perkins (2019c).
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An Inward-moving and Asymmetric Velocity Wave Detected in LAMOST-Gaia
The Astrophysical Journal LettersThe phase space, as coded by kinematic parameters and chemical abundances, is crucial for understanding the formation of the Galactic disk. Using red giant stars from the Galactic thin disk with [Fe/H] > − 0.8 and low- α ratios identified in LAMOST-Gaia,
Yuqin Chen +5 more
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On Sagittarius A* - Theory and Observations
, 2010 Massive and supermassive dust spheres (with a zero internal pressure) collapse to full globes of finite volumes, whose surfaces have the properties of the event horizon around a mass-point. This fact explains the observational data concerning Sagittarius A* (SgrA*). By virtue of Hilbert's repulsive effect, both the event horizon of a mass-point and the
Loinger, A., Marsico, T.
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The Core Mass Function across Galactic Environments. IV. The Galactic Center
The Astrophysical JournalThe origin of the stellar initial mass function (IMF) and how it may vary with galactic environment is a matter of debate. Certain star formation theories involve a close connection between the IMF and the core mass function (CMF), so it is important to ...
Alva V. I. Kinman +4 more
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Properties of H2O Masers and Their Associated Sources in Sagittarius B2
The Astrophysical JournalWe present high-resolution Karl G. Jansky Very Large Array observations of the 22 GHz H _2 O maser line in the extended Sagittarius B2 cloud. We detect 499 H _2 O masers across the observed velocities between −39 and 172 km s ^−1 .
Nazar Budaiev +7 more
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Bounds on ultralight bosons from the Event Horizon Telescope observation of Sgr A $$^*$$ ∗
European Physical Journal C: Particles and FieldsRecent observation of Sagittarius A $$^*$$ ∗ (Sgr A $$^*$$ ∗ ) by the Event Horizon Telescope (EHT) collaboration has uncovered various unanswered questions in black hole (BH) physics.
Akash Kumar Saha +5 more
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The inner 300 parsecs of the Milky Way seen by H.E.S.S.: a Pevatron in the Galactic Centre
EPJ Web of Conferences, 2017 The Galactic Centre region has been observed by the High Energy Stereoscopic System (H.E.S.S.) array of ground-based Cherenkov telescopes since 2004 leading to the detection of the very-high-energy γ-ray source HESS J1745-290 spatially coincident with ...
Moulin Emmanuel
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Species DiversityA single priacanthid specimen (129.4 mm in standard length), collected off Cape Moreton, Queensland, Australia at a depth of 109.7 m, was identified as Priacanthus zaiserae Starnes and Moyer, 1988 (Priacanthidae), being characterized by 13 dorsal-fin ...
Shintaro Hashimoto, Hiroyuki Motomura
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Group of red stars in the constellation Sagittarius [PDF]
, 1909 Edward C. Pickering
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Prospects of Detecting a Jet in Sagittarius A* with Very-long-baseline Interferometry
The Astrophysical JournalEvent Horizon Telescope (EHT) images of the horizon-scale emission around the Galactic center supermassive black hole Sagittarius A* (Sgr A*) favor accretion flow models with a jet component. However, this jet has not been conclusively detected.
Erandi Chavez +5 more
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