Results 1 to 10 of about 20,346,263 (306)

Distance to Sh2–106 from Gaia DR3 and its embedded radio population: Implications for a candidate explosive outflow

Astronomy & Astrophysics
Sh2–106 has recently been proposed as a candidate explosive molecular outflow, but the physical interpretation of the region depends critically on its distance.
Dzib Sergio A.
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The First Empirical Calibration of the Mid-infrared Abundance Diagnostic Ne23 with JWST

The Astrophysical Journal Letters
Large surveys of galaxies in the local and high-redshift Universe have, traditionally, relied on the intensity of rest-optical emission lines from metal ions in the interstellar medium (ISM) to indirectly estimate the O/H abundance in the gas.
Noah S. J. Rogers, Evan D. Skillman, Danielle A. Berg, Karla Z. Arellano-Córdova, Richard W. Pogge, Alessandra Aloisi, Leslie K. Hunt, Anne E. Jaskot, Matilde Mingozzi, Ryan J. Rickards Vaught, Karin M. Sandstrom, O. Grace Telford, Macarena G. del Valle-Espinosa   +12 more
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The Coevolution of Stellar Wind-blown Bubbles and Photoionized Gas. I. Physical Principles and a Semianalytic Model

The Astrophysical Journal
We propose a new framework for the simultaneous feedback of stellar winds and photoionizing radiation from massive stars, distinguishing the locations where forces are applied, and consequences for internal spatiotemporal evolution of the whole feedback ...
Lachlan Lancaster, Jeong-Gyu Kim, Greg L. Bryan, Shyam H. Menon, Eve C. Ostriker, Chang-Goo Kim   +5 more
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Galactic H II Regions in the LAMOST Medium-Resolution Spectroscopic Survey of Nebulae

The Astronomical Journal
Based on LAMOST Medium-Resolution Spectroscopic Survey of Nebulae (MRS-N) data and the Wide-field Infrared Survey Explorer Galactic H II region catalog, we construct a sample of 280 Galactic H II regions and candidates in the outer Galaxy (80° ≲  l ...
Yunning Zhao, Wei Zhang, Lin Ma, Shiming Wen, Tao Jing, Cheng Li, Zheng Zheng, Aiyuan Yang, Shichao Han, Juanjuan Ren, Jianjun Chen, Hong Wu, Yongheng Zhao   +12 more
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Absorption and Self-absorption of [C ii] and [O i] Far Infrared Lines toward a Bright Bubble in the Nessie Infrared Dark Cloud

The Astrophysical Journal
Using the upGREAT instrument on board the Stratospheric Observatory for Infrared Astronomy, we imaged [C ii ] 157.74 and [O i ] 63.18 μ m line emission from a bright photodissociation region (PDR) associated with an ionized bubble located in the Nessie ...
James M. Jackson, J. Scott Whitaker, Edward Chambers, Robert Simon, Cristian Guevara, David Allingham, Philippa Patterson, Nicholas Killerby-Smith, Jacob Askew, Thomas Vandenberg, Howard A. Smith, Patricio Sanhueza, Ian W. Stephens, Lars Bonne, Fiorella L. Polles, Anika Schmiedeke, Netty Honigh, Matthias Justen   +17 more
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Low-mass Stellar and Substellar Content of the Young Cluster Berkeley 59

The Astronomical Journal
We present a multiwavelength analysis of the young star cluster Berkeley 59, based on Gaia data and deep IR observations with the 3.58 m Telescopio Nazionale Galileo and Spitzer space telescope.
Neelam Panwar, Rishi C., Saurabh Sharma, Devendra K. Ojha, Manash R. Samal, H. P. Singh, Ram Kesh Yadav   +6 more
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Spectral Microlensing of Extragalactic H II Regions by Stellar-mass Black Holes

The Astrophysical Journal Letters
Most of the Milky Way’s predicted stellar-mass black holes remain hidden, especially at high Galactic latitudes or in the Galactic halo, where traditional dense-field stellar microlensing is ineffective.
Dezi Liu
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Magnetic Field Alignment Relative to Multiple Tracers in the High-mass Star-forming Region RCW 36

The Astrophysical Journal
We use polarization data from SOFIA HAWC+ to investigate the interplay between magnetic fields and stellar feedback in altering gas dynamics within the high-mass star-forming region RCW 36, located in Vela C.
Akanksha Bij, Laura M. Fissel, Lars Bonne, Nicola Schneider, Marc Berthoud, Dennis Lee, Giles A. Novak, Sarah I. Sadavoy, Thushara G. S. Pillai, Maria Cunningham, Paul Jones, Robert Simon   +11 more
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Galactic Large-scale Filaments Resident in Asymmetric Environments: Clues from Cross-filament Profiles of Density and Temperature

The Astrophysical Journal
Large-scale filaments ubiquitously exist in the Galactic interstellar medium, and their radial profiles offer insights into their formation mechanisms. We present a statistical analysis of molecular hydrogen column density (N(H _2 )) and dust temperature
Keyun Su, Ke Wang, Fengwei Xu, N. K. Bhadari   +3 more
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Joint Optical and Infrared Observations of Nitrogen and Oxygen Reveal the Dust-obscured Gas in Haro 3

The Astrophysical Journal
Accurate chemical compositions of star-forming regions provide a critical diagnostic tool for characterizing the star formation history and gas flows that regulate galaxy formation.
Yuguang Chen, Tucker Jones, Ryan L. Sanders, Dario Fadda, Jessica Sutter, Robert Minchin, Nikolaus Z. Prusinski, Sunny Rhoades, Keerthi Vasan GC, Charles C. Steidel, Erin Huntzinger, Paige Kelly, Danielle A. Berg, Fabio Bresolin, Rodrigo Herrera-Camus, Ryan J. Rickards Vaught, Guido Roberts-Borsani, Peter Senchyna, Justin S. Spilker, Daniel P. Stark, Benjamin Weiner, D. Christopher Martin, Mateusz Matuszewski, Rosalie C. McGurk, James D. Neill   +24 more
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