Results 111 to 120 of about 736 (212)

The Structure of the Large-Scale Heliosphere as Seen by Current Models. [PDF]

Space Sci Rev, 2022
Kleimann J, Dialynas K, Fraternale F, Galli A, Heerikhuisen J, Izmodenov V, Kornbleuth M, Opher M, Pogorelov N.   +8 more
europepmc   +1 more source

Scintillation Bandwidth Measurements from 23 Pulsars from the AO327 Survey

The Astrophysical Journal
A pulsar’s scintillation bandwidth is inversely proportional to the scattering delay, making accurate measurements of scintillation bandwidth critical to characterize unmitigated delays in efforts to measure low-frequency gravitational waves with pulsar ...
Sofia Sheikh, Grayce C. Brown, Jackson MacTaggart, Thomas Nguyen, William D. Fletcher, Brenda L. Jones, Emma Koller, Veronica Petrus, Katie F. Pighini, Gray Rosario, Vincent A. Smedile, Adam T. Stone, Shawn You, Maura A. McLaughlin, Jacob E. Turner, Julia S. Deneva, Michael T. Lam, Brent J. Shapiro-Albert   +17 more
doaj   +1 more source

The Breakthrough Listen Search for Intelligent Life: Galactic Center Search for Scintillated Technosignatures

The Astronomical Journal
The search for extraterrestrial intelligence at radio frequencies has focused on spatial filtering as a primary discriminant from terrestrial interference.
Bryan Brzycki, Andrew P. V. Siemion, Imke de Pater, Carmen Choza, Steve Croft, Vishal Gajjar, Jamie Drew, Brian C. Lacki, Danny C. Price, Sofia Z. Sheikh   +9 more
doaj   +1 more source

Reconnection-driven energy cascade in magnetohydrodynamic turbulence. [PDF]

Sci Adv, 2022
Dong C, Wang L, Huang YM, Comisso L, Sandstrom TA, Bhattacharjee A.   +5 more
europepmc   +1 more source

Prospects for Identifying Pulsar Candidates in Radio Surveys Using Scintillation

The Astrophysical Journal
In our previous paper, we developed a technique for identifying pulsar candidates in interferometric radio images using their distinctive scintillation signatures.
Jitendra Salal, Shriharsh P. Tendulkar, Visweshwar Ram Marthi   +2 more
doaj   +1 more source

Refractive interstellar scintillation of radio sources

The Astrophysical Journal, 1986
On propose une theorie simplifiee pour le phenomene de scintillation interstellaire refractive et on l'examine en tant qu'interpretation possible des variations observees pour de nombreuses ...
openaire   +1 more source

Interstellar scintillation is an indicator of astrometric stability

, 2013
We examine the relationship between astrometric stability and astrophysical properties in flat-spectrum radio-loud quasars making up the celestial reference frame. We use position determinations from geodetic VLBI measurements, and develop a new metric for source position stability.
Schaap, Robert, Shabala, Stanislav, Ellingsen, Simon, Titov, Oleg, Lovell, Jim   +4 more
openaire   +2 more sources

Searching for Galactic Hidden Gas through interstellar scintillation [PDF]

, 2008
International audienceConsidering the results of baryonic compact massive ob jects searches through microlensing [1], cool molecular hydrogen (H_2 - He) clouds should now be seriously considered as a possible major component of the Galactic hidden matter.
Moniez, M., R. Ansari, M. Moniez, Ansari, R., F. Habibi, Habibi, F.   +5 more
core  

Interstellar Scintillation and Annual Cycles in the BL LAC Source PKS 1519-273 [PDF]

, 2003
We have measured annual cycles in the time scales of the rapid, intra-day variability of the total and circularly polarized flux density, of the unusual BL Lac source PKS 1519-273 at 4.8 and 8.6 GHz.
Macquart, JP (15487898), Jauncey, DL (15475694), Johnston, HM (15510941), Kedziora-Chudczer, L (15480539), James Lovell (14742772), Tzioumis, AK (15475700), Bignall, HE (15491141)   +6 more
core   +2 more sources

Modeling the Morphology of Fast Radio Bursts and Radio Pulsars with fitburst

The Astrophysical Journal Supplement Series
We present a framework for modeling astrophysical pulses from radio pulsars and fast radio bursts (FRBs). This framework, called fitburst , generates synthetic representations of dynamic spectra that are functions of several physical and heuristic ...
E. Fonseca, Z. Pleunis, D. Breitman, K. R. Sand, B. Kharel, P. J. Boyle, C. Brar, U. Giri, V. M. Kaspi, K. W. Masui, B. W. Meyers, C. Patel, P. Scholz, K. Smith   +13 more
doaj   +1 more source