Results 21 to 30 of about 959 (179)

Compressed channeled spectropolarimetry

Optics Express, 2017
Channeled spectropolarimetry measures the spectrally resolved Stokes parameters. A key aspect of this technique is to accurately reconstruct the Stokes parameters from a modulated measurement of the channeled spectropolarimeter. The state-of-the-art reconstruction algorithm uses the Fourier transform to extract the Stokes parameters from channels in ...
Dennis J. Lee, Charles F. LaCasse, Julia M. Craven   +2 more
openaire   +3 more sources

The molecular details of a novel phosphorylation‐dependent interaction between MRN and the SOSS complex

Protein Science, Volume 32, Issue 10, October 2023., 2023
Abstract The repair of double‐strand DNA breaks (DSBs) by homologous recombination is crucial in the maintenance of genome integrity. While the key role of the Mre11‐Rad50‐Nbs1 (MRN) complex in repair is well known, hSSB1 (SOSSB and OBFC2B), one of the main components of the sensor of single‐stranded DNA (SOSS) protein complex, has also been shown to ...
Serene El‐Kamand, Mark N. Adams, Jacqueline M. Matthews, Mar‐Dean Du Plessis, Ben Crossett, Angela Connolly, Natasha Breen, Alexander Dudley, Derek J. Richard, Roland Gamsjaeger, Liza Cubeddu   +10 more
wiley   +1 more source

RMTable2023 and PolSpectra2023: Standards for Reporting Polarization and Faraday Rotation Measurements of Radio Sources

The Astrophysical Journal Supplement Series, 2023
Faraday rotation measures (RMs) have been used for many studies of cosmic magnetism, and in most cases having more RMs is beneficial for those studies.
C. L. Van Eck, B. M. Gaensler, S. Hutschenreuter, J. Livingston, Y. K. Ma, C. J. Riseley, A. J. M. Thomson, B. Adebahr, A. Basu, M. Birkinshaw, T. A. Enßlin, G. Heald, S. A. Mao, N. M. McClure-Griffiths   +13 more
doaj   +1 more source

SPIRou: NIR velocimetry and spectropolarimetry at the CFHT [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACT This paper presents an overview of SPIRou, the new-generation near-infrared spectropolarimeter/precision velocimeter recently installed on the 3.6-m Canada–France–Hawaii Telescope (CFHT). Starting from the two main science goals, i.e., the quest for planetary systems around nearby M dwarfs and the study of magnetized star/planet
Donati, J-F, Kouach, D, Moutou, C., Doyon, R., Delfosse, X., Artigau, É., Baratchart, S., Lacombe, M., Barrick, G, Hébrard, G., Bouchy, F, Saddlemyer, L, Parès, L, Rabou, P, Micheau, Y, Dolon, F, Reshetov, V, Challita, Z, Carmona, A, Striebig, N, Thibault, S, Martioli, E, Cook, N, Fouqué, P, Vermeulen, T, Wang, S, Arnold, L, Pepe, F, Boisse, I, Figueira, P, Bouvier, J, Ray, T, Feugeade, C, Morin, J, Alencar, S, Hobson, M, Castilho, B, Udry, Stéphane, Santos, N, Hernandez, O, Benedict, T, Vallée, P, Gallou, G, Dupieux, M, Larrieu, M, Perruchot, S, Sottile, R, Moreau, F, Usher, C, Baril, M, Wildi, F, Chazelas, B, Malo, L, Bonfils, Xavier, Loop, D, Kerley, D, Wevers, I, Dunn, J, Pazder, J, Macdonald, S, Dubois, B, Carrié, E, Valentin, H, Henault, F, Yan, C, Steinmetz, T   +65 more
openaire   +5 more sources

Polarization Radiometric Calibration in Laboratory for a Channeled Spectropolarimeter

Applied Sciences, 2020
The process of radiometric calibration would be coupled with the polarization properties of an optical system for spectropolarimetry, which would have significant influences on reconstructed Stokes parameters.
Wenhe Xing, Xueping Ju, Jian Bo, Changxiang Yan, Bin Yang, Shuyan Xu, Junqiang Zhang   +6 more
doaj   +1 more source

Spectropolarimetry of a Decaying Sunspot Penumbra [PDF]

The Astrophysical Journal, 2008
We report on high angular resolution, high precision spectropolarimetric measurements of a decaying sunspot. The spot gradually lost its penumbra during the course of three days. In the late stages of evolution where the only remnant of the spot is a naked umbra, we find small-scale inhomogeneities in the magnetic canopy surrounding it.
Rubio, L. R. Bellot, Tritschler, A., Pillet, V. Martinez   +2 more
openaire   +2 more sources

SPECTROPOLARIMETRY OF β Cephei TYPE STAR γ Pegasi

Odessa Astronomical Publications, 2017
Results of an intensive spectropolarimetric study of the small-amplitude purely radial pulsating β Cephei- type star γ Pegasi are presented. It was shown that residual intensity, full width at half maximum and equivalent width of the He I 6678 line vary
V. V. Butkovskaya
doaj   +1 more source

Asteroseismology and Spectropolarimetry of the Exoplanet Host Star λ Serpentis

The Astronomical Journal, 2023
The bright star λ Ser hosts a hot Neptune with a minimum mass of 13.6 M _⊕ and a 15.5 day orbit. It also appears to be a solar analog, with a mean rotation period of 25.8 days and surface differential rotation very similar to the Sun.
Travis S. Metcalfe, Derek Buzasi, Daniel Huber, Marc H. Pinsonneault, Jennifer L. van Saders, Thomas R. Ayres, Sarbani Basu, Jeremy J. Drake, Ricky Egeland, Oleg Kochukhov, Pascal Petit, Steven H. Saar, Victor See, Keivan G. Stassun, Yaguang Li, Timothy R. Bedding, Sylvain N. Breton, Adam J. Finley, Rafael A. García, Hans Kjeldsen, Martin B. Nielsen, J. M. Joel Ong, Jakob L. Rørsted, Amalie Stokholm, Mark L. Winther, Catherine A. Clark, Diego Godoy-Rivera, Ilya V. Ilyin, Klaus G. Strassmeier, Sandra V. Jeffers, Stephen C. Marsden, Aline A. Vidotto, Sallie Baliunas, Willie Soon   +33 more
doaj   +1 more source

Spectropolarimetry of Type Ibc Supernovae [PDF]

Proceedings of the International Astronomical Union, 2011
AbstractStudying a multi-dimensional structure of supernovae (SNe) gives important constraints on the mechanism of the SN explosion. Polarization measurement is one of the most powerful methods to study the explosion geometry of extragalactic SNe. Especially, Type Ib/c SNe are the ideal targets because the core of the explosion is bare.
Tanaka, M., Kawabata, K., Hattori, T., Mazzali, P., Aoki, K., Iye, M., Maeda, K., Nomoto, K., Pian, E., Sasaki, T., Yamanaka, M.   +10 more
openaire   +2 more sources

Optical Spectropolarimetry of Binary Asteroid Didymos–Dimorphos before and after the DART Impact

The Astrophysical Journal Letters, 2023
We have monitored the Didymos–Dimorphos binary asteroid in spectropolarimetric mode in the optical range before and after the DART impact. The ultimate goal was to obtain constraints on the characteristics of the ejected dust for modeling purposes ...
Stefano Bagnulo, Zuri Gray, Mikael Granvik, Alberto Cellino, Ludmilla Kolokolova, Karri Muinonen, Olga Muñoz, Cyrielle Opitom, Antti Penttilä, Colin Snodgrass   +9 more
doaj   +1 more source