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🔍 sofya raskhodnikova 📂 Physics
Showing 435 results for "sofya raskhodnikova" in Physics
Physics Preprint PDF DOI

HyGAL: Characterizing the Galactic ISM with observations of hydrides and other small molecules. III. The absorption lines of [O I], CH, and OH

W.-J. Kim, A. M. Jacob, D. A. Neufeld, P. Schilke, H. Wiesemeyer, M. Gerin, M. G. Wolfire, V. Ossenkopf-Okada, V. Valdivia, E. Falgarone, D. C. Lis, S. Bialy, M. R. Rugel, A. Sanchez-Monge, M. Busch, T. Moller, F. Wyrowski, D. Seifried, K. M. Menten, A. Saintonge · 2026

The HyGAL Stratospheric Observatory for Infrared Astronomy (SOFIA) legacy program aims at characterizing the interstellar medium in the Milky Way using hydrides, [C II], and [O I] absorption lines wit…

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Physics Preprint PDF DOI

Thermal background reduction for mid-infrared imaging by low-rank background and sparse point-source modelling

R.A.R. Moens, A.G.M. Pietrow, B. Brandl, R. Van de Plas · 2026

Mid-infrared astronomy from the ground faces critical challenges in accurately detecting and quantifying sources due to the dominant spatially and time-variable background noise. Moreover, chopping an…

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Physics Preprint PDF DOI

Investigation of Hourglass-shaped Magnetic fields in the G35.20-0.74 Star-Forming Complex

O. R. Jadhav, L. K. Dewangan, A. K. Maity, Sanhueza Patricio, D. K. Ojha, Saurabh Sharma, Ram Kesh Yadav, A. Haj Ismail, Moustafa Salouci, Ian Stephens · 2026

To investigate the role of magnetic fields toward the G35N and G35S sub-regions in the G35.20-0.74 star-forming complex, we utilized multi-wavelength polarimetric observations from the SOFIA/HAWC+ at …

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Physics Preprint PDF DOI

CII fine-structure line observations of the Sagittarius C Region in the Galaxy's Central Molecular Zone

DEnise Riquelme-Vasquez, Rolf Guesten, Mark R. Morris, Andrwe I. Harris, Miguel A. Requena-Torres, Esteban F.E. Morales, Juergen Stutzki, Robert Simon, Christophe Risacher, Ronan Higgins · 2026

Context. Sagittarius C (Sgr C) is a massive, relatively quiescent complex at the western edge of the Galaxy's Central Molecular Zone (CMZ). While the Sgr B2 region has been extensively studied, Sgr C …

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Physics Preprint PDF DOI

High-resolution mid-IR spectroscopy of SVS 13-A with EXES/SOFIA: The surprisingly high CH$_3$OH/H$_2$O ratio in the planet-forming zone of a solar mass protostar

Curtis DeWitt, Marta De Simone, Eleonora Bianchi, Cecilia Ceccarelli, Claudio Codella, Sarah Nickerson, Keeyoon Sung, Albert Rimola, Vittorio Bariosco, Piero Uliengo, Naseem Rangwala · 2026

Water and methanol are key components of interstellar ices and gas in star- and planet-forming regions, but direct observations of water in low-mass protostars are challenging due to atmospheric absor…

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Physics Preprint PDF DOI

FATHOMER survey: III. Preliminary HI galaxy identification results

Shuanghao Shu, Yichao Li, Wenxiu Yang, Jiaxin Wang, Wenkai Hu, Furen Deng, Shifan Zuo, Yougang Wang, Xuelei Chen · 2026

We present the HI galaxy observation results of the FATHOMER (FAst neuTral HydrOgen intensity Mapping ExpeRiment), a pilot drift scan survey by the Five-hundred-meter Aperture Spherical radio Telescop…

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Physics Preprint PDF DOI

Unveiling an Hourglass-Shaped Magnetic Field toward IRDC G351.77-0.53

O. R. Jadhav, L. K. Dewangan, I. I. Zinchenko, Thushara G. S. Pillai, Patricio Sanhueza, A. K. Maity, Ram K. Yadav, Saurabh Sharma · 2026

We present the SOFIA/HAWC+ 214 $\mu$m polarimetric observations toward the infrared dark cloud G351.77-0.53 (hereafter G351), complemented by existing multi-wavelength data sets. Infrared excess from …

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Physics Preprint PDF DOI

Far-infrared Polarization Properties of Nearby Star-forming Regions: A New Compendium of SOFIA/HAWC+ Observations

Kaitlyn Karpovich, Susan E. Clark, Enrique Lopez-Rodriguez · 2026

We present a comprehensive polarimetric study of 26 nearby molecular clouds in four far-infrared bands (53 $\mu$m to 214 $\mu$m) using 52 archival SOFIA/HAWC+ datasets. Far-infrared dust polarization …

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Physics Preprint PDF DOI

SIMPLIFI-Study of Interstellar Magnetic Polarization: A Legacy Investigation of Filaments. II. Enhancement of grain alignment near embedded protostars in the DR21 Ridge

S. Kumar, T.G.S. Pillai, G. V. Panopoulou, J. Kauffmann, L. N. Tram, S. Reissl, D. Clemens, V. J. M. Le Gouellec, M. Heyer, L. M. Fissel, P. F. Goldsmith, D. Seifried, G. A. P. Franco · 2026

Thermal dust continuum polarimetry is a powerful indirect probe of magnetic field geometry in dense molecular clouds while at the same time providing information on the alignment of dust grains with t…

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Physics Preprint PDF DOI

The role of radiative torques in the molecular cloud core L43

Marco Leon Scheiter, Sebastian Wolf · 2026

Polarized emission from interstellar dust grains is commonly used to infer information about the underlying magnetic field from the diffuse interstellar medium to molecular cloud cores. Therefore, the…

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Physics Preprint PDF DOI

The Astronomical Telescope of the University of Stuttgart (ATUS): Development, Optimization, and Lessons Learned

Karsten Schindler, Jurgen Wolf, Alfred Krabbe · 2026

ATUS, the Astronomical Telescope of the University of Stuttgart, is a fully remote-controlled 0.6 m f/8.17 Ritchey-Chr\'etien telescope optimized for high-cadence, high-fidelity photometry of transien…

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Physics Preprint PDF DOI

Surveying the Giant HII Regions of the Milky Way with SOFIA: VIII. W43 Main

James M. De Buizer, Wanggi Lim, James T. Radomski, Nicole Karnath · 2026

In this eighth paper of the SOFIA-FORCAST series on Milky Way GHII regions, we present an analysis of the massive star-forming complex W43 Main. We compared our 11 - 37 micron maps with multi-waveleng…

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Physics Preprint PDF DOI

The SOFIA Massive(SOMA)Radio Survey. III. Radio Emission from Intermediate-Mass Protostars

Francisco Sequeira-Murillo, Viviana Rosero, Joshua Marvil, Jonathan C. Tan, Ruben Fedriani, Yichen Zhang, Prasanta Gorai, James M. De Buizer, Maria T. Beltran · 2025

We present results from Very Large Array (VLA) radio continuum observations of twelve intermediate-mass (IM) protostars, as part of the \textit{SOFIA} Massive Star Formation Survey. Using these observ…

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Physics Preprint PDF DOI

Globules and pillars in Cygnus X IV. Velocity-resolved [OI] 63 mu map of a peculiar proplyd-like object

N. Schneider, S. Dannhauer, E. Keilmann, S. Kabanovic, T. Topkaras, V. Ossenkopf-Okada, R. Higgins, A. Brunthaler, Won-Ju Kim, F. Comeron, M. Roellig, T. Csengeri, R. Simon, Y. Okada, M. Justen, S.A. Dzib, G. N. Ortiz-Leon · 2025

We investigated an isolated, globule-shaped object (0.37x0.11 pc), located near the centre of the Cygnus OB2 cluster and named proplyd #7 in optical observations. The source can be a massive star (wit…

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Physics Preprint PDF DOI

ACES: The Magnetic Field in Large Filaments in the Galactic Center

Dylan M. Pare, Zi-Xuan Feng, Yue Hu, Maya A. Petkova, Jack Sullivan, Robin G. Tress, Cara Battersby, Janik Karoly, Alex Lazarian, Dani Lipman, Xing Pan, Marco Donati, Mattia C. Sormani, John Bally, Ashley T. Barnes, Natalie O. Butterfield, Laura Colzi, Christoph Federrath, Pablo Garcia, Adam Ginsburg, Savannah R. Gramze, Anika Schmiedeke, Christian Henkel, Jonathan D. Henshaw, Paul T. Ho, Pei-Ying Hsieh, Izaskun Jimenez-Serra, Ralf S. Klessen, J. M. Diederik Kruijssen, Steven N. Longmore, Xing Lu, Elisabeth A.C. Mills, Alvaro Sanchez-Monge, Daniel L. Walker, Jennifer Wallace, Qizhou Zhang · 2025

The Galactic Center (GC) is an extreme region of the Milky Way that is host to a complex set of thermal and non-thermal structures. In particular, the GC contains high-density gas and dust that is col…

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Physics Preprint PDF DOI

SOFIA FEEDBACK Survey: The Eagle Nebula in [C II] and Molecular Lines

Ramsey L. Karim, Marc W. Pound, Alexander G.G.M. Tielens, Jelle S. Kaastra, Leisa K. Townsley, Patrick S. Broos, Maitraiyee Tiwari, Lars Bonne, Umit Kavak, Mark G. Wolfire, Nicola Schneider, Robert Simon, Rolf Gusten, Jurgen Stutzki, Marc Mertens, Oliver Ricken, Friedrich Wyrowski, Lee G. Mundy · 2025

We characterize the physical conditions and energy budget of the M16 H II region using SOFIA FEEDBACK observations of the [C II] 158 $\mu$m line. The O stars in the $\sim 10^{4}~{\rm M}_{\odot}$ NGC 6…

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Physics Preprint PDF DOI

The SOMA MM Survey. I. An Astrochemical Census of Massive Protostars

D. Gigli, P. Gorai, C.Y. Law, J. C. Tan, M. Bonfand, T. Rahman, Y. Zhang, K. Taniguchi, R. Fedriani, Z. Telkamp, V. Rosero, G. Cosentino · 2025

During massive star formation, dense gas undergoes chemical evolution, producing both simple and complex organic molecules (COMs) characteristic of hot molecular cores. How this evolution depends on p…

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Physics Preprint PDF DOI

The Sagittarius C Complex in the Mid-Infrared with SOFIA/FORCAST

Roy J. Zhao, Mark R. Morris, Matthew J. Hankins, Angela S. Cotera, Janet P. Simpson · 2025

We present an analysis of high-resolution mid-infrared observations at 25 and 37 $\mu m$ of the Sagittarius C Complex (Sgr C) in the Central Molecular Zone (CMZ), based on data from the SOFIA/FORCAST …

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Physics Preprint PDF DOI

Magnetic Fields in the Bones of the Milky Way

Ian W. Stephens, Simon Coude, Philip C. Myers, Catherine Zucker, James M. Jackson, B-G Andersson, Rowan Smith, Archana Soam, Patricio Sanhueza, Taylor Hogge, Howard A. Smith, Giles Novak, Sarah Sadavoy, Thushara Pillai, Zhi-Yun Li, Leslie W. Looney, Koji Sugitani, Andres E. Guzman, Alyssa Goodman, Takayoshi Kusune, Miaomiao Zhang, Nicole Karnath, Jessy Marin · 2025

Stars primarily form in galactic spiral arms within dense, filamentary molecular clouds. The largest and most elongated of these molecular clouds are referred to as ``bones," which are massive, veloci…

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Physics Preprint PDF DOI

FIELDMAPS Data Release: Far-Infrared Polarization in the "Bones" of the Milky Way

Simon Coude, Ian W. Stephens, Philip C. Myers, Nicole Karnath, Howard A. Smith, Andres Guzman, Jessy Marin, Catherine Zucker, B-G. Andersson, Zhi-Yun Li, Leslie W. Looney, Giles Novak, Thushara G. S. Pillai, Sarah I. Sadavoy, Patricio Sanhueza, Archana Soam · 2025

Polarization observations of the Milky Way and many other spiral galaxies have found a close correspondence between the orientation of spiral arms and magnetic field lines on scales of hundreds of par…

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