Results 131 to 140 of about 17,073 (217)

A Systematic Search for Main-sequence Dipper Stars Using the Zwicky Transient Facility

The Astrophysical Journal
Main-sequence dipper stars, characterized by irregular and often aperiodic luminosity dimming events, offer a unique opportunity to explore the variability of circumstellar material and its potential links to planet formation, debris disks, and broadly ...
Anastasios Tzanidakis, James R. A. Davenport, Neven Caplar, Eric C. Bellm, Wilson Beebe, Doug Branton, Sandro Campos, Andrew J. Connolly, Melissa DeLucchi, Konstantin Malanchev, Sean McGuire   +10 more
doaj   +1 more source

ASASSN-24fw: Candidate Gas-rich Circumsecondary Disk Occultation of a Main-sequence Star

The Astronomical Journal
Dusty disks around planetary and substellar companions in outer reaches of exoplanetary systems can be detected as long-lasting occultations, provided the observer is close to the secondary’s orbital plane. Here we report optical spectroscopy with KOSMOS
Nadia L. Zakamska, Gautham Adamane Pallathadka, Dmitry Bizyaev, Jaroslav Merc, James E. Owen, Henrique Reggiani, Kevin C. Schlaufman, Karolina Bąkowska, Sławomir Bednarz, Krzysztof Bernacki, Agnieszka Gurgul, Kirsten R. Hall, Franz-Josef Hambsch, Barbara Joachimczyk, Krzysztof Kotysz, Sebastian Kurowski, Alexios Liakos, Przemysław J. Mikołajczyk, Erika Pakštienė, Grzegorz Pojmański, Adam Popowicz, Daniel E. Reichart, Łukasz Wyrzykowski, Justas Zdanavičius, Michał Żejmo, Paweł Zieliński, Staszek Zola   +26 more
doaj   +1 more source

Sources of Nitrogen-, Sulfur-, and Phosphorus-Containing Feedstocks for Prebiotic Chemistry in the Planetary Environment. [PDF]

Life (Basel), 2022
Todd ZR.
europepmc   +1 more source

Forecasting Catastrophe: Constraints on the Fomalhaut Main-belt Planetesimal Population from Observed Collisional Remnants

The Astrophysical Journal Letters
Catastrophic planetesimal disruptions offer a unique opportunity to study and characterize large planetesimal populations in exoplanetary systems that are not currently detectable by modern observatories.
Arin M. Avsar, Kevin Wagner, Dániel Apai, Christopher C. Stark, Isabel Rebollido   +4 more
doaj   +1 more source

Radiation-driven acceleration in the expanding WR140 dust shell. [PDF]

Nature, 2022
Han Y, Tuthill PG, Lau RM, Soulain A.
europepmc   +1 more source

How Sublimation Delays the Onset of Dusty Debris Disk Formation Around White Dwarf Stars. [PDF]

Astrophys J Lett, 2021
Steckloff JK, Debes J, Steele A, Johnson B, Adams ER, Jacobson SA, Springmann A.   +6 more
europepmc   +1 more source

The abundances of carbon and nitrogen in the atmospheres of classical Be stars. [PDF]

Astrophys Space Sci
Peters GJ, Gayley KG, Rast RG, Vink JS, Drake JJ.   +4 more
europepmc   +1 more source

Formation of free-floating planetary mass objects via circumstellar disk encounters. [PDF]

Sci Adv
Fu Z, Deng H, Lin DNC, Mayer L.
europepmc   +1 more source

Spiers Memorial Lecture: Astrochemistry at high resolution.

Faraday Discuss, 2023
Ceccarelli C.
europepmc   +1 more source

Experimental evidence for granular shear-flow instability in the Epstein regime. [PDF]

Commun Phys
Capelo HL, Bodénan JD, Jutzi M, Kühn J, Surville C, Mayer L, Schönbächler M, Alibert Y, Thomas N, Pommerol A.   +9 more
europepmc   +1 more source