The Planck Cold Clump G108.37-01.06: A Site of Complex Interplay between H II Regions, Young Clusters and Filaments

Abstract

The {\it Planck} Galactic Cold Clumps (PGCCs) are the possible representations of the initial conditions and the very early stages of star formation. With an objective to understand better the star and star cluster formation, we probe the molecular cloud associated with PGCC G108.37-01.06 (hereafter, PG108.3), which can be traced in a velocity range $-$57 to $-$51 km s${}^{-1}$. The IPHAS images reveal H$\alpha$ emission at various locations around PG108.3, and optical spectroscopy of the bright sources in those zones of H$\alpha$ emission disclose two massive ionizing sources with spectral type O8-O9V and B1V. Using the radio continuum, we estimate ionizing gas parameters and find the dynamical ages of \hii regions associated with the massive stars in the range 0.5$-$0.75 Myr. Based on the stellar surface density map constructed from the deep near-infrared CHFT observations, we find two prominent star clusters in PG108.3; of which, the cluster associated with \hii region S148 is moderately massive ($\sim$ 240 M$\sun$). A careful inspection of JCMT ${}^{13}$CO(3$-$2) molecular data exhibits that the massive cluster is associated with a number of filamentary structures. Several embedded young stellar objects (YSOs) are also identified in the PG108.3 along the length and junction of filaments. We find the evidence of velocity gradient along the length of the filaments. Along with kinematics of the filaments and the distribution of ionized, molecular gas and YSOs, we suggest that the cluster formation is most likely due to the longitudinal collapse of the most massive filament in PG108.3.

arXiv comment22 pages, 17 figures, Accepted for publication in Astrophysical Journal

References in corpus (92)

• Astropy: A Community Python Package for Astronomy
• Gaia Data Release 2. Summary of the contents and survey properties
• The Gaia mission
• PARSEC: stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code
• Embedded Clusters in Molecular Clouds
• Intrinsic Colors, Temperatures, and Bolometric Corrections of Pre-Main Sequence Stars
• From filamentary clouds to prestellar cores to the stellar IMF: Initial highlights from the Herschel Gould Belt survey
• Color Transformations for the 2MASS Second Incremental Data Release
• Gaia Data Release 2: using Gaia parallaxes
• A Spitzer Survey of Young Stellar Clusters within One Kiloparsec of the Sun: Cluster Core Extraction and Basic Structural Analysis
• Filamentary structure of star-forming complexes
• Spitzer Observations of NGC 1333: A Study of Structure and Evolution in a Nearby Embedded Cluster
• PAHs as a tracer of star formation?
• The Luminosity & Mass Function of the Trapezium Cluster: From B stars to the Deuterium Burning Limit
• Infrared Extinction Toward Nearby Star-Forming Regions
• Dynamic star formation in the massive DR21 filament
• Cluster-formation in the Rosette molecular cloud at the junctions of filaments
• Filamentary Accretion Flows in the Embedded Serpens South Protocluster
• SCUBA-2: on-sky calibration using submillimetre standard sources
• SDC13 infrared dark clouds: Longitudinally collapsing filaments?
• HARP/ACSIS: A submillimetre spectral imaging system on the James Clerk Maxwell Telescope
• Flows, Fragmentation, and Star Formation. I. Low-mass Stars in Taurus
• The spine of the swan: A Herschel study of the DR21 ridge and filaments in Cygnus X
• Dense core formation by fragmentation of velocity-coherent filaments in L1517
• Planck Early Results: The Galactic Cold Core Population revealed by the first all-sky survey
• Spitzer/IRAC Photometry of M, L, and T Dwarfs
• The Initial Configuration of Young Stellar Clusters: A K-band Number Counts Analysis of the Surface Density of Stars
• Fragmentation of Molecular Clumps and Formation of Protocluster
• Planck early results: first assessment of the High Frequency Instrument in-flight performance
• Collapse and Fragmentation in Finite Sheets
• The Second Data Release of the INT Photometric H-Alpha Survey of the Northern Galactic Plane (IPHAS DR2)
• Triggered massive-star formation on the borders of Galactic HII regions. II. Evidence for the collect and collapse process around RCW 79
• Molecular Clouds Toward the Super Star Cluster NGC3603; Possible Evidence for a Cloud-Cloud Collision in Triggering the Cluster Formation
• Galactic cold cores III. General cloud properties
• Clustered and Triggered Star Formation in W5: Observations with Spitzer
• Planck Early Results: Statistical properties of extragalactic radio sources in the Planck Early Release Compact Source Catalogue
• Gas dynamics in Massive Dense Cores in Cygnus-X
• Fibers in the NGC1333 proto-cluster
• Unveiling a network of parallel filaments in the Infrared Dark Cloud G14.225-0.506
• Initial Data Release from the INT Photometric H-alpha Survey of the Northern Galactic Plane (IPHAS)
• Ultradeep Ks Imaging in the GOODS-N
• Interstellar matter and star formation in W5-E - A Herschel view
• Gas emissions in Planck cold dust clumps---A Survey of the J=1-0 Transitions of ${}^{12}$CO, ${}^{13}$CO, and C${}^{18}$O
• A holistic perspective on the dynamics of G035.39-00.33: the interplay between gas and magnetic fields
• An IRAS High Resolution Image Restoration (HIRES) Atlas of All Interacting Galaxies in the IRAS Revised Bright Galaxy Sample
• MUSCLE W49 : A Multi-Scale Continuum and Line Exploration of the Most Luminous Star Formation Region in the Milky Way. I. Data and The Mass Structure of the Giant Molecular Cloud
• Age, size, and position of H ii regions in the Galaxy. Expansion of ionized gas in turbulent molecular clouds
• The TOP-SCOPE survey of Planck Galactic Cold Clumps: Survey overview and results of an exemplar source, PGCC G26.53+0.17
• Searching for signs of triggered star formation toward IC 1848
• Bipolar HII regions - Morphology and star formation in their vicinity - I - G319.88$+$00.79 and G010.32$-$00.15
• ALMA reveals sequential high-mass star formation in the G9.62+0.19 complex
• W40 region in the Gould Belt : An embedded cluster and H II region at the junction of filaments
• Stellar contents and star formation in the young star cluster Be 59
• Star formation in bright-rimmed clouds and cluster associated with W5 E H{\sc ii} region
• Spitzer Space Telescope observations of the Carina Nebula: The steady march of feedback-driven star formation
• The molecular complex associated with the Galactic HII region Sh2-90: a possible site of triggered star formation
• Thermal Jeans fragmentation within 1000 AU in OMC-1S
• Star Formation Activity in the Galactic HII Complex S255-S257
• Observational constraints on star cluster formation theory - I. The mass-radius relation
• Interactions of the Infrared bubble N4 with the surroundings
• The low-mass Initial Mass Function in the young cluster NGC 6611
• Young stellar population and ongoing star formation in the HII complex Sh2-252
• High-mass star formation possibly triggered by cloud-cloud collision in the HII region RCW 34
• Star formation in W3 - AFGL333: Young stellar content, properties and roles of external feedback
• Discovering young stars in the Gum 31 region with infrared observations
• Optical photometric and polarimetric investigation of NGC 1931
• Triggered star formation surrounding Wolf-Rayet star HD 211853
• The low-mass population in the young cluster Stock 8: Stellar properties and Initial Mass Function
• Young Stellar Population of the Bright-Rimmed Clouds BRC 5, BRC 7 and BRC 39
• Herschel and SCUBA-2 observations of dust emission in a sample of Planck cold clumps
• Deep GeMS/GSAOI near-infrared observations of N159W in the Large Magellanic Cloud
• The VISTA Orion mini-survey: star formation in the Lynds 1630 North cloud
• Optical and Near-infrared survey of the stellar contents associated with the star-forming Complex Sh2-252
• A Young GMC Formed at the Interface of Two Colliding Supershells: Observations Meet Simulations
• Low-mass young stellar population and star formation history of the cluster IC 1805 in the W4 H{\sc ii} region
• Star formation in the filament of S254-S258 OB complex: a cluster in the process of making
• A multiwavelength study of Galactic HII region Sh2-294
• Young cluster Berkeley 59 : Properties, evolution and star formation
• Molecular clouds and star formation toward the Galactic plane within 216.25${}^{\mathrm{o}}\le$ l $\le$218.75${}^{\mathrm{o}}$ and $-$0.75${}^{\mathrm{o}}\le$ b $\le$1.25${}^{\mathrm{o}}$
• The young cluster NGC 2282 : a multi-wavelength perspective
• A study of the Galactic star forming region IRAS 02593+6016 / S 201 in infrared and radio wavelengths
• GMC Collisions as Triggers of Star Formation. VI. Collision-Induced Turbulence
• Assessing molecular line diagnostics of triggered star formation using synthetic observations
• Deep near-infrared adaptive optics observations of a young embedded cluster at the edge of the RCW 41 HII region
• Study of Molecular Clouds associated with HII Regions
• The TOP-SCOPE survey of PGCCs: PMO and SCUBA-2 observations of 64 PGCCs in the 2nd Galactic Quadrant
• Physical Properties of Galactic Planck Cold Cores revealed by the Hi-GAL survey
• Optical Photometric Variable Stars towards the Galactic \hii region NGC 2282
• Near-infrared study of the stellar population of Sh2-152
• Star formation conditions in a Planck Galactic Cold Clump, G108.84-00.81
• Study of the filamentary infrared dark cloud G192.76+00.10 in the S254-S258 OB complex
• Gas kinematics in massive star-forming regions from the Perseus spiral arm

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