Results 101 to 110 of about 247 (167)

Evolution of the Disk in the Be Binary δ Scorpii Probed during Three Periastron Passages

The Astrophysical Journal
We examine the evolution of the disk surrounding the Be star in the highly eccentric 10.8 yr binary system δ Scorpii over its three most recent periastron passages. V -band and B − V photometry, along with H α spectroscopy, are combined with a new set of
R. G. Rast, C. E. Jones, A. C. Carciofi, M. W. Suffak, A. C. Fonseca Silva, G. W. Henry, C. Tycner   +6 more
doaj   +1 more source

Kottamia Faint Imaging Spectro-Polarimeter (KFISP): opto-mechanical design, software control and performance analysis. [PDF]

Exp Astron (Dordr), 2022
Azzam YA, Elnagahy FIY, Ali GB, Essam A, Saad S, Ismail H, Zead I, Ahmed NM, Yoshida M, Kawabata KS, Akitaya H, Shokry A, Hendy YHM, Takey A, Hamed GM, Mack P.   +15 more
europepmc   +1 more source

Polarized blazar X-rays imply particle acceleration in shocks. [PDF]

Nature, 2022
Liodakis I, Marscher AP, Agudo I, Berdyugin AV, Bernardos MI, Bonnoli G, Borman GA, Casadio C, Casanova VC, Cavazzuti E, Rodriguez Cavero N, Di Gesu L, Di Lalla N, Donnarumma I, Ehlert SR, Errando M, Escudero J, Garcı A-Comas M, Agı S-González B, Husillos C, Jormanainen J, Jorstad SG, Kagitani M, Kopatskaya EN, Kravtsov V, Krawczynski H, Lindfors E, Larionova EG, Madejski GM, Marin F, Marchini A, Marshall HL, Morozova DA, Massaro F, Masiero JR, Mawet D, Middei R, Millar-Blanchaer MA, Myserlis I, Negro M, Nilsson K, O'Dell SL, Omodei N, Pacciani L, Paggi A, Panopoulou GV, Peirson AL, Perri M, Petrucci PO, Poutanen J, Puccetti S, Romani RW, Sakanoi T, Savchenko SS, Sota A, Tavecchio F, Tinyanont S, Vasilyev AA, Weaver ZR, Zhovtan AV, Antonelli LA, Bachetti M, Baldini L, Baumgartner WH, Bellazzini R, Bianchi S, Bongiorno SD, Bonino R, Brez A, Bucciantini N, Capitanio F, Castellano S, Ciprini S, Costa E, De Rosa A, Del Monte E, Di Marco A, Doroshenko V, Dovčiak M, Enoto T, Evangelista Y, Fabiani S, Ferrazzoli R, Garcia JA, Gunji S, Hayashida K, Heyl J, Iwakiri W, Karas V, Kitaguchi T, Kolodziejczak JJ, La Monaca F, Latronico L, Maldera S, Manfreda A, Marinucci A, Matt G, Mitsuishi I, Mizuno T, Muleri F, Ng SC, Oppedisano C, Papitto A, Pavlov GG, Pesce-Rollins M, Pilia M, Possenti A, Ramsey BD, Rankin J, Ratheesh A, Sgró C, Slane P, Soffitta P, Spandre G, Tamagawa T, Taverna R, Tawara Y, Tennant AF, Thomas NE, Tombesi F, Trois A, Tsygankov S, Turolla R, Vink J, Weisskopf MC, Wu K, Xie F, Zane S.   +127 more
europepmc   +1 more source

Toward a General Theory of Grain Alignment and Disruption by Radiative Torques and Magnetic Relaxation

The Astrophysical Journal
We generalize the magnetically enhanced radiative torque (MRAT) theory for astrophysical environments described by a dimensionless parameter U /( n _1 T _2 ) with U the radiation strength, n _1  =  n _H /(10 cm ^−3 ) the normalized hydrogen density, and ...
Thiem Hoang
doaj   +1 more source

LOUPE: observing Earth from the Moon to prepare for detecting life on Earth-like exoplanets. [PDF]

Philos Trans A Math Phys Eng Sci, 2021
Klindžić D, Stam DM, Snik F, Keller CU, Hoeijmakers HJ, van Dam DM, Willebrands M, Karalidi T, Pallichadath V, van Dijk CN, Esposito M.   +10 more
europepmc   +1 more source

Challenges in constraining dust properties from starlight polarization

submitted to A&A, comments ...
openaire   +2 more sources

Recent Advances in Indoor Localization via Visible Lights: A Survey. [PDF]

Sensors (Basel), 2020
Rahman ABMM, Li T, Wang Y.
europepmc   +1 more source

Swarm of lightsail nanosatellites for Solar System exploration. [PDF]

Sci Rep, 2023
Santi G, Corso AJ, Garoli D, Lio GE, Manente M, Favaro G, Bazzan M, Piotto G, Andriolli N, Strambini L, Pavarin D, Badia L, Proietti Zaccaria R, Lubin P, Ragazzoni R, Pelizzo MG.   +15 more
europepmc   +1 more source

The rising moon promotes mate finding in moths. [PDF]

Commun Biol, 2022
Storms M, Jakhar A, Mitesser O, Jechow A, Hölker F, Degen T, Hovestadt T, Degen J.   +7 more
europepmc   +1 more source

Spectral sensitivity transition in the compound eyes of a twilight-swarming mayfly and its visual ecological implications. [PDF]

Proc Biol Sci, 2022
Egri Á, Mészáros Á, Kriska G.
europepmc   +1 more source