Rapid luminosity decline and subsequent reformation of the innermost dust distribution in the changing-look AGN Mrk 590

Autor: Mitsuru Kokubo, Takeo Minezaki

Publikováno v: Monthly Notices of the Royal Astronomical Society. 491:4615-4633

We examine the long-term optical/near-infrared (NIR) flux variability of a "changing-look" active galactic nucleus (AGN) Mrk 590 between 1998 and 2007. Multi-band multi-epoch optical/NIR photometry data from the SDSS Stripe 82 database and the Multic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f188c91ba06c3396714732588d4bb58e
https://doi.org/10.1093/mnras/stz3397

Formation of stellar clusters in magnetized, filamentary infrared dark clouds

Autor: Christopher F. McKee, Pak Shing Li, Richard I. Klein

Publikováno v: Monthly Notices of the Royal Astronomical Society. 473:4220-4241

Star formation in a filamentary infrared dark cloud (IRDC) is simulated over a dynamic range of 4.2 pc to 28 au for a period of $3.5\times 10^5$ yr, including magnetic fields and both radiative and outflow feedback from the protostars. At the end of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46c17d765b17b2349c8499cba8d8d841
https://doi.org/10.1093/mnras/stx2611

Northern Galactic Molecular Cloud Clumps in Hi-GAL: Clump and Star Formation within Clouds

Autor: Erika Zetterlund, Jason Glenn, Erik Rosolowsky

We investigate how the properties of Galactic giant molecular clouds (GMCs) and their denser substructures (clumps) correlate with the local star formation rate. We trace clouds using the $^{12}$CO(3-2) transition, as observed by the CO High Resoluti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05d610c9389eb11dd8654e3b914ecde6

The Star Formation Efficiency per Free Fall Time in Nearby Galaxies

Autor: Jiayi Sun, Antonio Usero, Kathryn Kreckel, Mélanie Chevance, Miguel Querejeta, Dyas Utomo, Adam K. Leroy, Guillermo A. Blanc, Eve C. Ostriker, Andreas Schruba, Erik Rosolowsky, Frank Bigiel, Karin Sandstrom, Cinthya N. Herrera, Alexander P. S. Hygate, Jérôme Pety, Eva Schinnerer, J. M. Diederik Kruijssen, Eric Emsellem

Publikováno v: The Astrophysical journal letters
The Astrophysical journal letters, Bristol : IOP Publishing, 2018, 861 (2), pp.L18. ⟨10.3847/2041-8213/aacf8f⟩
The Astrophysical journal letters, 2018, 861 (2), pp.L18. ⟨10.3847/2041-8213/aacf8f⟩
The Astrophysical Journal

We estimate the star formation efficiency per gravitational free fall time, $\epsilon_{\rm ff}$, from observations of nearby galaxies with resolution matched to the typical size of a Giant Molecular Cloud. This quantity, $\epsilon_{\rm ff}$, is theor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bacc5f0d636d45828fe834899476b93

A MAD Model for Gamma-Ray Burst Variability

Autor: Nicole M. Lloyd-Ronning, Chris L. Fryer, Joshua C. Dolence

We present a model for the temporal variability of long gamma-ray bursts during the prompt phase (the highly variable first 100 seconds or so), in the context of a magnetically arrested disk (MAD) around a black hole. In this state, sufficient magnet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2598f4f5b1618757dc4aec8aa98064aa
http://arxiv.org/abs/1606.01572