Results 111 to 120 of about 181,622 (240)

Radial Velocities of Southern B Stars Determined at the Radcliffe Observatory*: (Paper II) [PDF]

, 1957
M. W. Feast, A. D. Thackeray, A. J. Wesselink   +2 more
openalex   +1 more source

Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b

The Astronomical Journal
The recent discoveries of Neptune-sized ultra-short-period planets (USPs) challenge existing planet formation theories. It is unclear whether these residents of the Hot Neptune Desert have similar origins to smaller, rocky USPs, or if this discrete ...
Emma Nabbie, Chelsea X. Huang, Jennifer A. Burt, David J. Armstrong, Eric E. Mamajek, Vardan Adibekyan, Sérgio G. Sousa, Eric D. Lopez, Daniel Thorngren, Jorge Fernández Fernández, Gongjie Li, James S. Jenkins, Jose I. Vines, João Gomes da Silva, Robert A. Wittenmyer, Daniel Bayliss, César Briceño, Karen A. Collins, Xavier Dumusque, Keith Horne, Marcelo Aron F. Keniger, Nicholas Law, Jorge Lillo-Box, Shang-Fei Liu, Andrew W. Mann, Louise D. Nielsen, Ares Osborn, Howard M. Relles, José J. Rodrigues, Juan Serrano Bell, Gregor Srdoc, Chris Stockdale, Paul A. Strøm, Cristilyn N. Watkins, Peter J. Wheatley, Duncan J. Wright, George Zhou, Carl Ziegler, George Ricker, Sara Seager, Roland Vanderspek, Joshua N. Winn, Jon M. Jenkins, Michael Fausnaugh, Michelle Kunimoto, Hugh P. Osborn, Samuel N. Quinn, Bill Wohler   +47 more
doaj   +1 more source

Radial Velocities of Southern B Stars Determined at the Radcliffe Observatory*: (Paper I) [PDF]

, 1955
M. W. Feast, A. D. Thackeray, Anna Wesselink   +2 more
openalex   +1 more source

Four Sub-Earth Planets Orbiting Barnard’s Star from MAROON-X and ESPRESSO

The Astrophysical Journal Letters
Barnard’s Star is an old, single M dwarf star that comprises the second-closest extrasolar system. It has a long history of claimed planet detections from both radial velocities and astrometry.
Ritvik Basant, Rafael Luque, Jacob L. Bean, Andreas Seifahrt, Madison Brady, Lily L. Zhao, Nina Brown, Tanya Das, Julian Stürmer, David Kasper, Rohan Gupta, Guđmundur Stefánsson   +11 more
doaj   +1 more source

Wave-Length Standards for Radial-Velocity Determinations from B-type Spectra [PDF]

, 1953
R. M. Petrie
openalex   +1 more source

Breaking the degeneracy between warps and radial flows in external galaxies [PDF]

arXiv
Observations of the line-of-sight component of emitter velocities in galaxies are valuable for reconstructing their 2D velocity fields, albeit requiring certain assumptions. A common one is that radial flows can be neglected in the outer regions of galaxies, while their geometry can be deformed by a warp. A specular approach assumes that galactic discs
arxiv  

Radial Velocity Observations of Southern Visual Binaries [PDF]

, 1957
S. A. Archer
openalex   +1 more source

Fourteen stars whose radial velocities vary

, 1915
Ralph E. Wilson, Roscoe F. Sanford
openalex   +1 more source

An Emission-Line Object of High Radial Velocity [PDF]

, 1957
G. H. Herbig, N. U. Mayall
openalex   +1 more source

Radial velocity technique

The precise Doppler method for measuring stellar radial velocities (RV) is a fundamental technique in modern astronomy. This method records a star's spectrum and detects periodic Doppler shifts in its spectral features, which indicate the gravitational influences induced by orbiting companions.
openaire   +2 more sources