Turbulent structures in the magnetic interstellar medium

磁性星际介质中的湍流结构

• 批准号: 2106607
• 负责人: Susan Clark
• 金额: $ 47.78万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2106607&HistoricalAwards=false
• 关键词: Turbulent; structures; magnetic; interstellar; medium

The Interstellar Medium (ISM) is the stuff that fills the space between the stars in our Galaxy. The ISM includes ionized gas and a variety of molecules, as well as dust threaded with magnetic fields. The investigators will learn how magnetic fields interact to form new structures in interstellar gas and dust. They will better understand turbulence and magnetism in galaxies. This project is important because the magnetic structures in our galaxy obscures objects much farther away. By better understanding our galaxy, they hope to detect faint signals that provide clues on how our universe began. The investigators will pilot a new summer research experience for formerly incarcerated undergraduate students. They hope to enable these students to begin careers in science and technology. Graduate students will develop data visualization tools used in scientific and public outreach talks. This project will combine archival Arecibo Observatory neutral hydrogen data with new dust polarization maps from the Atacama Cosmology Telescope to quantify the coherence of the magnetic field between the warm and cold neutral media, and to characterize the spatial structure of dust polarization on small angular scales. Their work will also use archival Zeeman splitting measurements to make a new determination of properties of the magnetic field and of magnetohydrodynamic turbulence in the diffuse interstellar medium. The code and data products produced in this work will be made publicly available.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

星际介质（ISM）是填充我们银河系中恒星之间空间的物质。 ISM包括电离气体和各种分子，以及带有磁场的尘埃。研究人员将了解磁场如何相互作用，在星际气体和尘埃中形成新的结构。他们将更好地理解星系中的湍流和磁性。这个项目很重要，因为我们银河系的磁性结构使更远的物体变得模糊。通过更好地了解我们的星系，他们希望探测到微弱的信号，为我们的宇宙如何开始提供线索。调查人员将为以前被监禁的本科生试点一项新的夏季研究经验。他们希望使这些学生能够开始科学和技术方面的职业生涯。研究生将开发用于科学和公共宣传讲座的数据可视化工具。该项目将联合收割机将阿雷西博天文台的中性氢档案数据与阿塔卡马宇宙学望远镜的新尘埃偏振图相结合，以量化冷暖中性介质之间磁场的相干性，并描述尘埃偏振在小角度尺度上的空间结构。他们的工作还将使用档案塞曼分裂测量，使一个新的确定的磁场和磁流体动力学湍流的性质在弥漫的星际介质。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Magnetic Misalignment of Interstellar Dust Filaments

星际尘埃丝的磁错位

• DOI: 10.3847/1538-4357/acb0c4
• 发表时间: 2023
• 期刊: The Astrophysical Journal
• 作者: Cukierman, Ari J.;Clark, S. E.;Halal, George
• 通讯作者: Halal, George

The width of Herschel filaments varies with distance

赫歇尔细丝的宽度随距离变化

• DOI: 10.1051/0004-6361/202142281
• 发表时间: 2022
• 期刊: Astronomy & Astrophysics
• 影响因子: 6.5
• 作者: Panopoulou, G. V.;Clark, S. E.;Hacar, A.;Heitsch, F.;Kainulainen, J.;Ntormousi, E.;Seifried, D.;Smith, R. J.
• 通讯作者: Smith, R. J.

BICEP/Keck. XVI. Characterizing Dust Polarization through Correlations with Neutral Hydrogen

• DOI: 10.3847/1538-4357/acb64c
• 发表时间: 2022-10
• 期刊: The Astrophysical Journal
• 作者: B. C. P. Ade;Z. Ahmed;M. Amiri;D. Barkats;R. Thakur;D. Beck;C. Bischoff;J. Bock;H. Boenish;E. Bullock;V. Buza;IV J.R.Cheshire;S. Clark;J. Connors;J. Cornelison;M. Crumrine;A. Cukierman;E. Denison;M. Dierickx;L. Duband;M. Eiben;S. Fatigoni;J. Filippini;S. Fliescher;C. Giannakopoulos;N. Goeckner-wald;D. Goldfinger;J. Grayson;P. Grimes;G. Halal;G. Hall;M. Halpern;E. Hand;S. Harrison;S. Henderson;S. Hildebrandt;J. Hubmayr;H. Hui;K. Irwin;J. Kang;K. Karkare;E. Karpel;S. Kefeli;S. A. Kernasovskiy;J. Kovac;C. Kuo;K. Lau;E. Leitch;A. Lennox;K. Megerian;L. Minutolo;L. Moncelsi;Y. Nakato;T. Namikawa;H. T. Nguyen;R. O’Brient;IV R.W.Ogburn;S. Palladino;M. Petroff;T. Prouvé;C. Pryke;B. Racine;C. Reintsema;S. Richter;A. Schillaci;B. Schmitt;R. Schwarz;C. Sheehy;B. Singari;A. Soliman;T. S. Germaine;B. Steinbach;R. Sudiwala;G. Teply;K. Thompson;J. Tolan;C. Tucker;A. Turner;C. Umilta;C. Vergés;A. Vieregg;A. Wandui;A. Weber;D. Wiebe;J. Willmert;C. Wong;W.L.K. Wu;H. Yang;K. Yoon;E. Young;C. Yu;L. Zeng;C. Zhang;S. University;Kipacslac;U. Columbia;HarvardCfA;Caltech;U. Cincinnati;S. University;Nasa Jpl;M. I. O. Astrophysics;U. Chicago;U. Minnesota;Nist;Sbt Grenoble;U. I. Urbana-Champaign;H. University;T. U. O. Tokyo;Aix-Marseille Université;Brookhaven National Laboratory

The Simons Observatory: Galactic Science Goals and Forecasts

• DOI: 10.3847/1538-4357/ac5e36
• 发表时间: 2021-11
• 期刊: The Astrophysical Journal
• 作者: B. Hensley;S. Clark;Valentina Fanfani;N. Krachmalnicoff;G. Fabbian;D. Poletti;G. Puglisi;G. Coppi;Jacob Nibauer;R. Gerasimov;N. Galitzki;Steve K. Choi;P. Ashton;C. Baccigalupi;E. Baxter;B. Burkhart;E. Calabrese;J. Chluba;J. Errard;A. Frolov;C. Herv'ias-Caimapo;K. Huffenberger;Bradley R. Johnson;B. Jost;B. Keating;H. McCarrick;F. Nati;Mayuri Sathyanarayana Rao;A. van Engelen;S. Walker;K. Wolz;Zhilei Xu;N. Zhu;A. Zonca

CCAT-prime Collaboration: Science Goals and Forecasts with Prime-Cam on the Fred Young Submillimeter Telescope

• DOI: 10.3847/1538-4365/ac9838
• 发表时间: 2021-07
• 期刊: The Astrophysical Journal Supplement Series
• 作者: CCAT-Prime Collaboration;M. Aravena;J. Austermann;K. Basu;N. Battaglia;B. Beringue;F. Bertoldi;F. Bigiel;J. Bond;P. Breysse;Colton Broughton;R. Bustos;S. Chapman;Maude Charmetant;Steve K. Choi;D. Chung;S. Clark;N. Cothard;A. Crites;Ankur Dev;K. Douglas;C. Duell;R. Dünner;Haruki Ebina;J. Erler;M. Fich;L. Fissel;S. Foreman;R. Freundt;P. Gallardo;Jiansong Gao;P. García;R. Giovanelli;J. Golec;C. Groppi;M. Haynes;D. Henke;B. Hensley;T. Herter;Ronan Higgins;R. Hložek;A. Huber;Z. Huber;J. Hubmayr;Rebecca Jackson;D. Johnstone;C. Karoumpis;L. Keating;E. Komatsu;Yaqiong Li;B. Magnelli;B. Matthews;P. Mauskopf;J. McMahon;P. Meerburg;Joel Meyers;V. Muralidhara;N. Murray;M. Niemack;T. Nikola;Y. Okada;R. Puddu;D. Riechers;E. Rosolowsky;K. Rossi;K. Rotermund;A. Roy;S. Sadavoy;R. Schaaf;P. Schilke;D. Scott;R. Simon;A. Sinclair;G. Sivakoff;G. Stacey;A. Stutz;J. Stutzki;M. Tahani;K. Thanjavur;R. Timmermann;J. Ullom;A. V. Engelen;E. Vavagiakis;M. Vissers;J. Wheeler;S. White;Yijie Zhu;B. Zou