Results 181 to 190 of about 6,949,336 (206)

A generalized framework for the collinear restricted four-body problem with a central dominant mass. [PDF]

Sci Rep
Idrisi MJ, Suraj MS, Ershkov S, Abouelmagd EI, Beza D.   +4 more
europepmc   +1 more source

Atacama Large Aperture Submillimeter Telescope (AtLAST) science: The hidden circumgalactic medium. [PDF]

Open Res Eur
Lee M, Schimek A, Cicone C, Andreani P, Popping G, Sommovigo L, Appleton PN, Bischetti M, Cantalupo S, Chen CC, Dannerbauer H, De Breuck C, Di Mascolo L, Emonts BHC, Hatziminaoglou E, Pensabene A, Rizzo F, Rybak M, Shen S, Lundgren A, Booth M, Klaassen P, Mroczkowski T, Cordiner MA, Johnstone D, van Kampen E, Liu D, Maccarone T, Saintonge A, Smith M, Thelen AE, Wedemeyer S.   +31 more
europepmc   +1 more source

Rational Design of Far-Red Archaerhodopsin-3-Based Fluorescent Genetically Encoded Voltage Indicators: from Elucidation of the Fluorescence Mechanism in Archers to Novel Red-Shifted Variants. [PDF]

ACS Phys Chem Au
Nikolaev DM, Mironov VN, Metelkina EM, Shtyrov AA, Mereshchenko AS, Demidov NA, Vyazmin SY, Tennikova TB, Moskalenko SE, Bondarev SA, Zhouravleva GA, Vasin AV, Panov MS, Ryazantsev MN.   +13 more
europepmc   +1 more source

Noise Sources and Strategies for Signal Quality Improvement in Biological Imaging: A Review Focused on Calcium and Cell Membrane Voltage Imaging. [PDF]

Biosensors (Basel)
Nikolaev DM, Metelkina EM, Shtyrov AA, Li F, Panov MS, Ryazantsev MN.   +5 more
europepmc   +1 more source

Research and Verification of a Novel Interferometry Method by Joint Processing of Downlink Pseudo-Noise Ranging and DOR Signals for Deep Space Exploration. [PDF]

Sensors (Basel)
Lu W, Fan M, Chen L, Xu D, Zhang Y, Ren T.   +5 more
europepmc   +1 more source

Flying through an Eruption-associated Magnetic Reconnection Current Sheet in the Solar Corona

Patel R, Niembro T, Xie X, Seaton D, Badman S, Roy S, Rivera Y, Reeves K, Stenborg G, Hess P, West M, Feller A, Hirzberger J, Suarez DO, Solanki S, Strecker H, Valori G.   +16 more
europepmc   +1 more source

A General Outlook on the Quasars

, 1968
Since my main field of research is astrophysics, I suppose that when asking me to present this paper, Professor Ramakrishnan probably intended to stress the point that the Institute of Mathematical Sciences, which is so rapidly and vigorously developing from year to year, after having extended the domain of its activities from theoretical physics to ...
N. Dallaporta
openalex   +2 more sources

Theoretical quasar emission line ratios. IV - General asymptotic escape probabilities and the effects of linear Stark broadening

The Astrophysical Journal, 1981
Established techniques permitting the evaluation of exact asymptotic forms of photon escape probabilities for a wide range of absorption coefficient profile types are used for QSO radiative transfer effect studies, and it is shown that the exact formulae are easily evaluated.
R. C. Puetter
openalex   +2 more sources

The DACs and SACs Effects From Stars to Quasars. Some First General Notices

AIP Conference Proceedings, 2007
The spectra of Hot Emission Stars and AGNs present peculiar profiles that result from dynamical processes such as accretion and/or ejection of matter from these objects. In this paper we explain the idea of DACs and SACs phenomena, as a reason of spectral lines peculiarity in Hot Emission Stars and AGNs.
Emmanouel Danezis, Antonis Antoniou, E. Lyratzi, Luka Č. Popović, M. S. Dimitrijević, Dimitris Nikolaidis, Luka Č. Popović, M. S. Dimitrijević   +7 more
openalex   +2 more sources

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Cosmological constraints from the Hubble diagram of quasars at high redshifts

Nature Astronomy, 2018
The concordance model (Λ cold dark matter (ΛCDM) model, where Λ is the cosmological constant) reproduces the main current cosmological observations1–4 assuming the validity of general relativity at all scales and epochs and the presence of CDM and of Λ ...
G. Risaliti, E. Lusso
semanticscholar   +1 more source