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We present results of optical spectroscopic and BVR_CI_C photometric observations of 77 pre-main sequence (PMS) stars in the Cepheus flare region. A total of 64 of these are newly confirmed PMS stars, originally selected from various…

Solar and Stellar Astrophysics · Physics 2014-11-20 M. Kun , Z. Balog , S. J. Kenyon , E. E. Mamajek , R. A. Gutermuth

We present spatial and kinematic correlation between the young stellar population and the cloud clumps in the Ophiuchus star-forming region. The stellar sample consists of known young objects at various evolutionary stages, taken from the…

Solar and Stellar Astrophysics · Physics 2022-05-02 Aashish Gupta , Wen-Ping Chen

The properties of stars and planets are shaped by the initial conditions of their natal clouds. However, the spatial scales over which the initial conditions can exert a significant influence are not well constrained. We report the first…

Solar and Stellar Astrophysics · Physics 2025-10-31 Caeley V. Pittman , Catherine C. Espaillat , Thanawuth Thanathibodee , Nuria Calvet , Lee W. Hartmann , Sylvie Cabrit

We present submillimetre observations of the J = 3-2 rotational transition of 12CO, 13CO and C18O across over 600 sq arcmin of the Perseus molecular cloud, undertaken with HARP, a new array spectrograph on the James Clerk Maxwell Telescope.…

Astrophysics of Galaxies · Physics 2015-05-14 Emily I. Curtis , John S. Richer , Jane V. Buckle

We present molecular line and dust continuum observations of a Planck-detected cold cloud, G074.11+00.11. The cloud consists of a system of curved filaments and a central star-forming clump. The clump is associated with several infrared…

We present a molecular line emission study of the LDN1188 dark cloud complex located in Cepheus. In this work we focused on the densest parts of the cloud and on the close neighbourhood of infrared point sources. We made ammonia mapping…

Solar and Stellar Astrophysics · Physics 2015-06-17 E. Verebélyi , V. Könyves , S. Nikolić , Cs. Kiss , A. Moór , P. Ábrahám , M. Kun

This work presents the magnetic field geometry in a complex of three cometary (with head-tail morphology) globules, namely LDN 323, LDN 328, and LDN 331, using R-band polarization measurements of background stars. These observations were…

Astrophysics of Galaxies · Physics 2023-08-02 Siddharth Kumar , Archana Soam , Nirupam Roy

Aims. The process of gravitational fragmentation in the L1482 molecular filament of the California molecular cloud is studied by combining several complementary observations and physical estimates. We investigate the kinematic and dynamical…

Astrophysics of Galaxies · Physics 2014-07-07 Da-Lei Li , Jarken Esimbek , Jian-Jun Zhou , Yu-Qing Lou , Gang Wu , Xin-Di Tang , Yu-Xin He

The northern Milky Way in the constellation of Cepheus (100 deg < l < 120 deg; 0 deg < b < 20 deg) contains several star forming regions. The molecular clouds of the Cepheus Flare region at b > 10 deg, are sites of low and intermediate mass…

Astrophysics · Physics 2008-09-30 M. Kun , Z. T. Kiss , Z. Balog

The nucleus of the Milky Way is known to drive a large-scale, multiphase galactic outflow, with gas phases ranging from the hot highly-ionized to the cold molecular component. In this work, we present the first systematic search for…

We took spatially resolved slit FORS2 spectra of 19 cluster galaxies at z=1.4, and 8 additional field galaxies at 1<z<1.2 using the ESO Very Large Telescope. The targets were selected from previous spectroscopic and photometric campaigns.…

Astrophysics of Galaxies · Physics 2017-09-27 J. M. Pérez-Martínez , B. Ziegler , M. Verdugo , A. Böhm , M. Tanaka

We analyze the gas mass distribution, the gas kinematics, and the young stellar object (YSO) content of the California Molecular Cloud (CMC) L1482 filament. We derive a Gaia DR2 YSO distance of 511$^{+17}_{-16}$ pc. We derive scale-free…

We present a new census of candidate pre-main-sequence stars in the Cepheus flare star-forming region, based on $\textit{Gaia}$ EDR3 parallaxes, proper motions, and colour$-$magnitude diagrams. We identified new candidate members of the…

Solar and Stellar Astrophysics · Physics 2023-06-21 Máté Szilágyi , Mária Kun , Péter Ábrahám

We present the results of C18O(J=1-0) mapping observations of a 20'x18' area in the Lynds 1204 molecular cloud associated with the Sharpless 2-140 (S140) H II region. The C18O cube (alpha-delta-vLSR) data shows that there are three clumps…

Solar and Stellar Astrophysics · Physics 2015-05-27 Norio Ikeda , Yoshimi Kitamura

We used high-resolution [C II] 158 $\mu$m mapping of two nebulae IC 59 and IC 63 from SOFIA/upGREAT in conjunction with ancillary data on the gas, dust, and polarization to probe the kinematics, structure, and magnetic properties of their…

Astrophysics of Galaxies · Physics 2023-06-28 Miranda Caputo , Archana Soam , B-G Andersson , Remy Dennis , Ed Chambers , Rolf Güsten , Lewis B. G. Knee , Jürgen Stutzki

Accurate measurements of young stellar cluster internal dynamics provide crucial insights into their formation. With Gaia, we are now able to trace stellar motions and study the dynamics of star clusters with unprecedented precision, but…

Solar and Stellar Astrophysics · Physics 2025-11-19 Bruno Wiesneth , Koraljka Muzic , Victor Almendros-Abad

We have measured the mean peculiar motions of 103 early-type galaxies in 7 clusters in the Perseus-Pisces (PP) ridge or PP background, and a further 249 such galaxies in 9 calibrating clusters from the literature, using the inverse…

Astrophysics · Physics 2015-06-24 M. J. Hudson , J. R. Lucey , R. J. Smith , J. Steel

"TRAO FUNS" is a project to survey Gould Belt's clouds in molecular lines. This paper presents its first results on the central region of the California molecular cloud, L1478. We performed On-The-Fly mapping observations using the Taedeok…

We present results of a new study of peculiar motions of 7 clusters in the Perseus-Pisces (PP) region, using the Fundamental Plane as a distance indicator. The sample is calibrated by reference to 9 additional clusters with data from the…

Astrophysics · Physics 2007-05-23 R. J. Smith , M. J. Hudson , J. R. Lucey , J. Steel

We examine the clustering and kinematics of young stellar objects (YSOs) in the North America/Pelican Nebulae, as revealed by Gaia astrometry, in relation to the structure and motions of the molecular gas, as indicated in molecular line…

Astrophysics of Galaxies · Physics 2020-08-26 Michael A. Kuhn , Lynne A. Hillenbrand , John M. Carpenter , Angel Rodrigo Avelar Menendez