Related papers: JWST NIRSpec's Cosmic Ray Experience at L2

STEREO observations of the energetic ions in tilted corotating interaction regions

In this paper we examine suprathermal He ions measured by the SIT (Suprathermal Ion Telescope) instrument associated with tilted corotating interaction regions (CIRs). We use observations of the two STEREO spacecraft (s/c) for the first 2.7…

Space Physics · Physics 2013-03-21 R. Bucik , U. Mall , A. Korth , G. M. Mason

JWST COMPASS Program: The 3--5$\mu$m transmission spectrum of LTT 1445 A b

The search for an atmosphere on the closest rocky M dwarf planet, LTT 1445 A b, has been the subject of intense investigation from both the ground and space. Here, we present the first JWST transmission spectrum of LTT 1445 A b using a…

Earth and Planetary Astrophysics · Physics 2026-05-15 Natasha E. Batalha , Nicole Wallack , Tyler Gordon , Nicholas F. Wogan , Katherine A. Bennett , Jea Adams Redai , Mercedes López-Morales , Johanna Teske , Jeff Valenti , Munazza K. Alam , Lili Alderson , Artyom Aguichine , Natalie M. Batalha , Anna Gagnebin , Peter Gao , Annabella Meech , Sarah E. Moran , Hannah R. Wakeford , Angie Wolfgang

Tracing nitrogen enrichment across cosmic time with JWST

We present a comprehensive analysis of the nitrogen-to-oxygen (N/O) abundance ratio in a sample of ~ 660 star-forming galaxies at redshift z ~ 1-6, with a median redshift of z = 3.0, using deep JWST/NIRSpec spectroscopy. Leveraging…

Astrophysics of Galaxies · Physics 2026-05-13 E. Cataldi , F. Belfiore , M. Curti , B. Moreschini , A. Marconi , R. Maiolino , A. Feltre , M. Ginolfi , F. Mannucci , G. Cresci , X. Ji , A. Amiri , M. Arnaboldi , E. Bertola , C. Bracci , M. Ceci , A. Chakraborty , F. Cullen , Q. D'Amato , C. Kobayashi , I. Lamperti , C. Marconcini , M. Scialpi , L. Ulivi , M. V. Zanchettin

The Hubble PanCET program: An extensive search for metallic ions in the exosphere of GJ 436 b

(Abridged) The quiet M2.5 star GJ 436 hosts a warm Neptune that displays an extended atmosphere that dwarfs its own host star. Predictions of atmospheric escape in such planets state that H atoms escape from the upper atmosphere in a…

Earth and Planetary Astrophysics · Physics 2019-09-04 L. A. dos Santos , D. Ehrenreich , V. Bourrier , A. Lecavelier des Etangs , M. López-Morales , D. K. Sing , G. Ballester , L. Ben-Jaffel , L. A. Buchhave , A. García Muñoz , G. W. Henry , T. Kataria , B. Lavie , P. Lavvas , N. K. Lewis , T. Mikal-Evans , J. Sanz-Forcada , H. Wakeford

Hot springs and dust reservoirs: JWST reveals the dusty, molecular aftermath of extragalactic stellar mergers

We present James Webb Space Telescope (JWST) observations of four Luminous Red Novae (LRNe): dusty, extragalactic transients from stellar mergers following common-envelope evolution (CEE) in massive binary stars. Our targets - AT2021blu,…

Solar and Stellar Astrophysics · Physics 2025-08-07 Viraj Karambelkar , Mansi Kasliwal , Ryan M. Lau , Jacob E. Jencson , Nadejda Blagorodnova , Marco A. Gomez-Munoz , Hugo Tranin , Maxime Wavasseur , Melissa Shahbandeh , Kishalay De

RHIC Low-Energy Challenges and Plans

There is significant interest in RHIC heavy ion collisions at $\sqrt{s_{NN}}=$5--50 GeV, motivated by a search for the QCD phase transition critical point. The lowest energies for this search are well below the nominal RHIC gold injection…

Accelerator Physics · Physics 2008-12-18 T. Satogata , L. Ahrens , M. Bai , J. M. Brennan , D. Bruno , J. Butler , A. Drees , A. Fedotov , W. Fischer , M. Harvey , T. Hayes , W. Jappe , R. C. Lee , W. W. MacKay , N. Malitsky , G. Marr , R. Michnoff , B. Oerter , E. Pozdeyev , T. Roser , F. Severino , K. Smith , S. Tepikian , N. Tsoupas

Constraints on the $z\sim6-13$ intergalactic medium from JWST spectroscopy of Lyman-alpha damping wings in galaxies

JWST provides a unique dataset to study reionization's earliest stages, promising insights into the first galaxies. Many JWST/NIRSpec prism spectra reveal smooth Lyman-alpha breaks in z>5 galaxies, implying damping wing scattering by…

Astrophysics of Galaxies · Physics 2026-01-14 Charlotte A. Mason , Zuyi Chen , Daniel P. Stark , Ting-Yi Lu , Michael Topping , Mengtao Tang

JWSTs PEARLS: NIRCam imaging and NIRISS spectroscopy of a $z=3.6$ star-forming galaxy lensed into a near-Einstein Ring by a $z=1.258$ massive elliptical galaxy

We present the discovery, and initial lensing analysis, of a high-redshift galaxy-galaxy lensing system within the JWST-PEARLS/HST-TREASUREHUNT North Ecliptic Pole Time Domain Field (designated NEPJ172238.9+655143.1). The lensing geometry…

Astrophysics of Galaxies · Physics 2025-10-29 Nathan J. Adams , Giovanni Ferrami , Lewi Westcott , Thomas Harvey , Vicente Estrada-Carpenter , Christopher J. Conselice , Duncan Austin , J. Stuart B. Wyithe , Caio M. Goolsby , Qiong Li , Vadim Rusakov , Rogier A. Windhorst , Seth H. Cohen , Rolf A. Jansen , Jake Summers , Roselia O'Brein , Anton M. Koekemoer , Simon P. Driver , Brenda Frye , Nimish P. Hathi , Dan Coe , Norman A. Grogin , Madeline A. Marshall , Nor Pirzkal , Russell E. Ryan , Christopher N. A. Willmer , Haojing Yan , Benne W. Holwerda , Patrick S. Kamieneski , Tom Broadhurst , W. Peter Maksym , Payaswini Saikia , Joseph D. Gelfand

JWST detection of a carbon dioxide dominated gas coma surrounding interstellar object 3I/ATLAS

3I/ATLAS is the third confirmed interstellar object to visit our Solar System, and only the second to display a clear coma. Infrared spectroscopy with the James Webb Space Telescope (JWST) provides the opportunity to measure its coma…

Earth and Planetary Astrophysics · Physics 2025-09-11 Martin A. Cordiner , Nathaniel X. Roth , Michael S. P. Kelley , Dennis Bodewits , Steven B. Charnley , Maria N. Drozdovskaya , Davide Farnocchia , Marco Micheli , Stefanie N. Milam , Cyrielle Opitom , Megan E. Schwamb , Cristina A. Thomas , Stefano Bagnulo

Investigating Protostellar Accretion-Driven Outflows Across the Mass Spectrum: JWST NIRSpec IFU 3-5~$\mu$m Spectral Mapping of Five Young Protostars

Investigating Protostellar Accretion is a Cycle 1 JWST program using the NIRSpec+MIRI integral field units to obtain 2.9--28 $\mu$m spectral cubes of five young protostars with luminosities of 0.2-10,000 L$_{\odot}$ in their primary…

Solar and Stellar Astrophysics · Physics 2024-04-25 Samuel Federman , S. Thomas Megeath , Adam E. Rubinstein , Robert Gutermuth , Mayank Narang , Himanshu Tyagi , P. Manoj , Guillem Anglada , Prabhani Atnagulov , Henrik Beuther , Tyler L. Bourke , Nashanty Brunken , Alessio Caratti o Garatti , Neal J. Evans , William J. Fischer , Elise Furlan , Joel Green , Nolan Habel , Lee Hartmann , Nicole Karnath , Pamela Klaassen , Hendrik Linz , Leslie W. Looney , Mayra Osorio , James Muzerolle Page , Riwaj Pokhrel , Rohan Rahatgaonkar , Will R. M. Rocha , Patrick Sheehan , Katerina Slavicinska , Thomas Stanke , Amelia M. Stutz , John J. Tobin , Lukasz Tychoniec , Ewine F. Van Dishoeck , Dan M. Watson , Scott Wolk , Yao-Lun Yang

Spectral and Timing Analysis of NuSTAR and Swift/XRT Observations of the X-Ray Transient MAXI J0637-430

We present results for the first observed outburst from the transient X-ray binary source MAXI J0637-430. This study is based on eight observations from the Nuclear Spectroscopic Telescope Array (NuSTAR) and six observations from the Neil…

High Energy Astrophysical Phenomena · Physics 2021-11-17 Hadar Lazar , John A. Tomsick , Sean N. Pike , Matteo Bachetti , Douglas J. K. Buisson , Riley M. T. Connors , Andrew C. Fabian , Felix Fuerst , Javier A. García , Jeremy Hare , Jiachen Jiang , Aarran W. Shaw , Dominic J. Walton

Near-IR imaging towards a puzzling YSO precessing jet

At present there are many studies concerning jets towards low-mass young stellar objects, while equivalent studies towards massive or intermediate-mass young stellar objects are scarce. In a previous study, we found highly misaligned…

Astrophysics of Galaxies · Physics 2016-10-05 S. Paron , C. Fariña , M. E. Ortega

Imaging the Low Red-shift Cosmic Web

The first image of a Cosmic Web, Lyman Limit System has just been made in HI emission within the Local Group filament connecting M31 and M33. The corresponding HI distribution function is in very good agreement with that of the QSO…

Astrophysics · Physics 2007-05-23 Robert Braun , David Thilker

Anomalous Cosmic Ray Oxygen Observations in to 0.1 au

The Integrated Science Investigation of the Sun instrument suite onboard NASA's Parker Solar Probe mission continues to measure solar energetic particles and cosmic rays closer to the Sun than ever before. Here, we present the first…

Solar and Stellar Astrophysics · Physics 2022-02-02 Jamie S. Rankin , David J. McComas , Richard A. Leske , Eric R. Christian , Christina M. S. Cohen , Alan C. Cummings , Colin J. Joyce , Allan W. Labrador , Richard A. Mewaldt , Nathan A. Schwadron , Edward C. Stone , R. Du Toit Strauss , Mark E. Wiedenbeck

JWST NIRSpec spectroscopy of the triply-lensed $z = 10.17$ galaxy MACS0647$-$JD

We present JWST/NIRSpec prism spectroscopy of MACS0647-JD, the triply-lensed $z \sim 11$ candidate discovered in HST imaging and spatially resolved by JWST imaging into two components A and B. Spectroscopy of component A yields a…

Astrophysics of Galaxies · Physics 2024-08-21 Tiger Yu-Yang Hsiao , Abdurro'uf , Dan Coe , Rebecca L. Larson , Intae Jung , Matilde Mingozzi , Pratika Dayal , Nimisha Kumari , Vasily Kokorev , Anton Vikaeus , Gabriel Brammer , Lukas J. Furtak , Angela Adamo , Felipe Andrade-Santos , Jacqueline Antwi-Danso , Marusa Bradac , Larry D. Bradley , Tom Broadhurst , Adam C. Carnall , Christopher J. Conselice , Jose M. Diego , Megan Donahue , Jan J. Eldridge , Seiji Fujimoto , Alaina Henry , Svea Hernandez , Taylor A. Hutchison , Bethan L. James , Colin Norman , Hyunbae Park , Norbert Pirzkal , Marc Postman , Massimo Ricotti , Jane R. Rigby , Eros Vanzella , Brian Welch , Stephen M. Wilkins , Rogier A. Windhorst , Xinfeng Xu , Erik Zackrisson , Adi Zitrin

The NIRSpec Wide GTO Survey

The Near-infrared Spectrograph (NIRSpec) on the James Webb Space Telescope is uniquely suited to studying galaxies in the distant Universe with its combination of multi-object capabilities and sensitivity over a large range in wavelength…

Astrophysics of Galaxies · Physics 2024-10-04 Michael V. Maseda , Anna de Graaff , Marijn Franx , Hans-Walter Rix , Stefano Carniani , Isaac Laseter , Ugne Dudzeviciute , Tim Rawle , Eleonora Parlanti , Santiago Arribas , Andrew J. Bunker , Alex J. Cameron , Stephane Charlot , Mirko Curti , Francesco D'Eugenio , Gareth C. Jones , Nimisha Kumari , Roberto Maiolino , Hannah Uebler , Aayush Saxena , Renske Smit , Chris Willott , Joris Witstok

Flux Variations of Cosmic Ray Air Showers Detected by LHAASO-KM2A During a Thunderstorm on 10 June 2021

The Large High Altitude Air Shower Observatory (LHAASO) has three sub-arrays, KM2A, WCDA and WFCTA. The flux variations of cosmic ray air showers were studied by analyzing the KM2A data during the thunderstorm on 10 June 2021. The number of…

High Energy Astrophysical Phenomena · Physics 2022-12-07 LHAASO Collaboration , F. Aharonian , Q. An , Axikegu , L. X. Bai , Y. X. Bai , Y. W. Bao , D. Bastieri , X. J. Bi , Y. J. Bi , J. T. Cai , Zhe Cao , Zhen Cao , J. Chang , J. F. Chang , E. S. Chen , Liang Chen , Liang Chen , Long Chen , M. J. Chen , M. L. Chen , S. H. Chen , S. Z. Chen , T. L. Chen , X. J. Chen , Y. Chen , H. L. Cheng , N. Cheng , Y. D. Cheng , S. W. Cui , X. H. Cui , Y. D. Cui , B. Z. Dai , H. L. Dai , Z. G. Dai , Danzengluobu , D. della Volpe , K. K. Duan , J. H. Fan , Y. Z. Fan , Z. X. Fan , J. Fang , K. Fang , C. F. Feng , L. Feng , S. H. Feng , X. T. Feng , Y. L. Feng , B. Gao , C. D. Gao , L. Q. Gao , Q. Gao , W. Gao , W. K. Gao , M. M. Ge , L. S. Geng , G. H. Gong , Q. B. Gou , M. H. Gu , F. L. Gu , J. G. Guo , X. L. Guo , Y. Q. Guo , Y. Y. Guo , Y. A. Han , H. H. He , H. N. He , S. L. He , X. B. He , Y. He , M. Heller , Y. K. Hor , C. Hou , X. Hou , H. B. Hu , Q. Hu , S. Hu , S. C. Hu , X. J. Hu , D. H. Huang , W. H. Huang , X. T. Huang , X. Y. Huang , Y. Huang , Z. C. Huang , X. L. Ji , H. Y. Jia , K. Jia , K. Jiang , Z. J. Jiang , M. Jin , M. M. Kang , T. Ke , D. Kuleshov , B. B. Li , Cheng Li , Cong Li , F. Li , H. B. Li , H. C. Li , H. Y. Li , J. Li , Jian Li , Jie Li , K. Li , W. L. Li , X. R. Li , Xin Li , Xin Li , Y. Z. Li , Zhe Li , Zhuo Li , E. W. Liang , Y. F. Liang , S. J. Lin , B. Liu , C. Liu , D. Liu , H. Liu , H. D. Liu , J. Liu , J. L. Liu , J. S. Liu , J. Y. Liu , M. Y. Liu , R. Y. Liu , S. M. Liu , W. Liu , Y. Liu , Y. N. Liu , W. J. Long , R. Lu , Q. Luo , H. K. Lv , B. Q. Ma , L. L. Ma , X. H. Ma , J. R. Mao , A. Masood , Z. Min , W. Mitthumsiri , Y. C. Nan , Z. W. Ou , B. Y. Pang , P. Pattarakijwanich , Z. Y. Pei , M. Y. Qi , Y. Q. Qi , B. Q. Qiao , J. J. Qin , D. Ruffolo , A. Sáiz , C. Y. Shao , L. Shao , O. Shchegolev , X. D. Sheng , J. Y. Shi , H. C. Song , Yu. V. Stenkin , V. Stepanov , Y. Su , Q. N. Sun , X. N. Sun , Z. B. Sun , P. H. T. Tam , Z. B. Tang , W. W. Tian , B. D. Wang , C. Wang , H. Wang , H. G. Wang , J. C. Wang , J. S. Wang , L. P. Wang , L. Y. Wang , R. Wang , R. N. Wang , W. Wang , X. G. Wang , X. Y. Wang , Y. Wang , Y. D. Wang , Y. J. Wang , Y. P. Wang , Z. H. Wang. Z. X. Wang , Zhen Wang , Zheng Wang , D. M. Wei , J. J. Wei , Y. J. Wei , T. Wen , C. Y. Wu , H. R. Wu , S. Wu , X. F. Wu , Y. S. W , S. Q. Xi , J. Xia , J. J. Xia , G. M. Xiang , D. X. Xiao , G. Xiao , G. G. Xin , Y. L. Xin , Y. Xing , Z. Xiong , D. L. Xu , R. X. Xu , L. Xue , D. H. Yan , J. Z. Yan , C. W. Yang , F. F. Yang , H. W. Yang , J. Y. Yang , L. L. Yang , M. J. Yang , R. Z. Yang , S. B. Yang , Y. H. Yao , Z. G. Yao , Y. M. Ye , L. Q. Yin , N. Yin , X. H. You , Z. Y. You , Y. H. Yu , Q. Yuan , H. Yue , H. D. Zeng , T. X. Zeng , W. Zeng , Z. K. Zeng , M. Zha , X. X. Zhai , B. B. Zhang , F. Zhang , H. M. Zhang , H. Y. Zhang , J. L. Zhang , L. X. Zhang , Li Zhang , Lu Zhang , P. F. Zhang , P. P. Zhang , R. Zhang , S. B. Zhang , S. R. Zhang , S. S. Zhang , X. Zhang , X. P. Zhang , Y. F. Zhang , Y. L. Zhang , Yi Zhang , Yong Zhang , B. Zhao , J. Zhao , L. Zhao , L. Z. Zhao , S. P. Zhao , F. Zheng , Y. Zheng , B. Zhou , H. Zhou , J. N. Zhou , P. Zhou , R. Zhou , X. X. Zhou , C. G. Zhu , F. R. Zhu , H. Zhu , K. J. Zhu , X. Zuo

Global ionospheric response to a periodic sequence of HSS/CIR events during the 2007-2008 solar minimum

In this study, we investigate the global ionospheric impact of high-speed solar wind streams/corotating interaction regions (HSS/CIR). A series of ten such events are identified between December 1st 2007 and April 29th 2008, characterized…

Space Physics · Physics 2021-05-18 Catalin Negrea , Costel Munteanu , Marius Mihai Echim

First JWST spectrum of distant activity in Long Period Comet C/2024 E1 (Wierzchos)

We observed the new Long Period Comet C/2024 E1 (Wierzchos), inbound at 7 au from the Sun, using the NIRSpec integral field unit on JWST. The spectrum shows absorption features due to water ice in the coma and evidence for CO$_2$ driven…

Earth and Planetary Astrophysics · Physics 2025-05-07 Colin Snodgrass , Carrie E. Holt , Michael S. P. Kelley , Cyrielle Opitom , Aurélie Guilbert-Lepoutre , Matthew M. Knight , Rosita Kokotanekova , Emmanuel Jehin , Elena Mazzotta Epifani , Alessandra Migliorini , Cecilia Tubiana , Marco Micheli , Davide Farnocchia

Ionised gas kinematics and dynamical masses of $z\gtrsim6$ galaxies from JADES/NIRSpec high-resolution spectroscopy

We explore the kinematic gas properties of six $5.5<z<7.4$ galaxies in the JWST Advanced Deep Extragalactic Survey (JADES), using high-resolution JWST/NIRSpec multi-object spectroscopy of the rest-frame optical emission lines [OIII] and…

Astrophysics of Galaxies · Physics 2023-12-20 Anna de Graaff , Hans-Walter Rix , Stefano Carniani , Katherine A. Suess , Stéphane Charlot , Emma Curtis-Lake , Santiago Arribas , William M. Baker , Kristan Boyett , Andrew J. Bunker , Alex J. Cameron , Jacopo Chevallard , Mirko Curti , Daniel J. Eisenstein , Marijn Franx , Kevin Hainline , Ryan Hausen , Zhiyuan Ji , Benjamin D. Johnson , Gareth C. Jones , Roberto Maiolino , Michael V. Maseda , Erica Nelson , Eleonora Parlanti , Tim Rawle , Brant Robertson , Sandro Tacchella , Hannah Übler , Christina C. Williams , Christopher N. A. Willmer , Chris Willott