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Three-dimensional (3D) kinetic maps of the Milky Way interstellar medium are an essential tool in studies of its structure and of star formation. We aim to assign radial velocities to Galactic interstellar clouds now spatially localized…

Astrophysics of Galaxies · Physics 2023-09-13 Q. Duchêne , C. Hottier , R. Lallement , J. L. Vergely , C. Babusiaux , A. Marchal , F. Arenou

We present [Ci] and [Cii] observations of a linear edge region in the Taurus molecular cloud, and model this region as a cylindrically symmetric PDR exposed to a low-intensity UV radiation field. The sharp, long profile of the linear edge…

Astrophysics of Galaxies · Physics 2015-06-22 Matthew Orr , Jorge Pineda , Paul Goldsmith

We present theoretical expectations for infall toward supercluster-scale cosmological filaments, motivated by the Arecibo Pisces-Perseus Supercluster Survey (APPSS) to map the velocity field around the Pisces-Perseus Supercluster (PPS)…

Cosmology and Nongalactic Astrophysics · Physics 2022-09-23 Mary Crone Odekon , Michael G. Jones , Lucas Graham , Jessica Kelley-Derzon , Evan Halstead

The recently introduced discrete persistent structure extractor (DisPerSE, Soubie 2010, paper I) is implemented on realistic 3D cosmological simulations and observed redshift catalogues (SDSS); it is found that DisPerSE traces equally well…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Thierry Sousbie , Christophe Pichon , Hajime Kawahara

Recent millimeter/sub-millimeter facilities have revealed the physical properties of filamentary molecular clouds in relation to high-mass star formation. A uniform survey of the nearest, face-on star-forming galaxy, the Large Magellanic…

(Abridged) We study the kinematics of the dense gas in the Taurus L1495/B213 filamentary region to investigate the mechanism of core formation. We use observations of N2H+(1-0) and C18O(2-1) carried out with the IRAM 30m telescope. We find…

Astrophysics of Galaxies · Physics 2015-02-04 M. Tafalla , A. Hacar

Analysing the kinematics of filamentary molecular clouds is a crucial step towards understanding their role in the star formation process. Therefore, we study the kinematics of 283 filament candidates in the inner Galaxy, that were…

We present a solution for the observed core fragmentation of filaments in the Taurus L1517 dark cloud which previously could not be explained (Hacar et. al 2011). Core fragmentation is a vital step for the formation of stars. Observations…

Solar and Stellar Astrophysics · Physics 2017-05-16 Stefan Heigl , Andreas Burkert , Alvaro Hacar

Context. It is almost banal to say that the interstellar medium (ISM) is structurally and thermodynamically complex. But the variety of the governing processes, including stellar feedback, renders the investigation challenging. High…

Astrophysics of Galaxies · Physics 2023-08-30 Marco Monaci , Loris Magnani , Steven N. Shore , Henrik Olofsson , Mackenzie R. Joy

We present a catalogue of dense cores and filaments in a $3.8^{\circ}\times2.4^{\circ}$ field around the TMC1 region of the Taurus Molecular Cloud. The catalogue was created using photometric data from the Herschel SPIRE and PACS…

We present observations and analysis of the low-mass star-forming region, Taurus Molecular Cloud-1 (TMC-1). CS ($J$=2-1)/N$_2$H$^+$ ($J$=1-0) and C$^{17}$O ($J$=2-1)/C$^{18}$O ($J$=2-1) were observed with FCRAO (Five College Radio Astronomy…

Astrophysics of Galaxies · Physics 2017-04-26 Yunhee Choi , Jeong-Eun Lee , Tyler L. Bourke , Neal J. Evans

We study four lines of sight that probe the transition from diffuse molecular gas to molecular cloud material in Taurus. Measurements of atomic and molecular absorption are used to infer the distribution of species and the physical…

Sub-millimetre observations suggest that the filaments of interstellar clouds have rather uniform widths and can be described with the so-called Plummer profiles. The shapes of the filament profiles are linked to their physical state.…

Astrophysics of Galaxies · Physics 2015-06-05 M. Juvela , J. Malinen , T. Lunttila

Dust emission is an important tool in studies of star-forming clouds, as a tracer of column density and indirectly via the dust evolution that is connected to the history and physical conditions of the clouds. We examine radiative transfer…

Astrophysics of Galaxies · Physics 2024-01-24 M. Juvela

Aims:We take advantage of the second data release of the Gaia space mission and the state-of-the-art astrometry delivered from very long baseline interferometry observations to revisit the structure and kinematics of the nearby Taurus…

Filamentary structures are ubiquitously found in high-mass star-forming clouds. To investigate the relationship between filaments and star formation, we carry out the INFANT (INvestigations of massive Filaments ANd sTar formation) survey, a…

High-resolution observations of the Perseus B5 "core" have previously revealed that this subsonic region actually consists of several filaments that are likely in the process of forming a quadruple stellar system. Since subsonic filaments…

Astrophysics of Galaxies · Physics 2022-09-05 Michael Chun-Yuan Chen , James Di Francesco , Jaime E. Pineda , Stella S. Offner , Rachel K. Friesen

Herschel surveys of Galactic clouds support a paradigm for low-mass star formation in which dense filaments play a crucial role. The detailed fragmentation properties of star-forming filaments remain poorly understood, however, and the…

Astrophysics of Galaxies · Physics 2019-12-11 Y. Shimajiri , Ph. Andre , E. Ntormousi , A. Men'shchikov , D. Arzoumanian , P. Palmeirim

Context. Taurus represents an ideal region to study the three-dimensional distribution of the young stellar population and relate it to the associated molecular cloud. Aims. The second Gaia data release (DR2) enables us to investigate the…

Solar and Stellar Astrophysics · Physics 2020-07-01 V. Roccatagliata , E. Franciosini , G. G. Sacco , S. Randich , A. Sicilia-Aguilar

We present the survey of $^{12}$CO/$^{13}$CO/C$^{18}$O (J=1-0) toward the California Molecular Cloud (CMC) within the region of 161.75$^{\circ} \leqslant l \leqslant$ 167.75$^{\circ}$,-9.5$^{\circ} \leqslant b \leqslant $-7.5$^{\circ}$,…

Astrophysics of Galaxies · Physics 2021-11-03 Weihua Guo , Xuepeng Chen , Jiancheng Feng , Li Sun , Chen Wang , Yang Su , Yan Sun , Yiping Ao , Shaobo Zhang , Xin Zhou , Lixia Yuan , Ji Yang