Related papers: IACHEC 2020/2021 Pandemic Report

Report from the Multi-Messenger Working Group at UHECR-2014 Conference

The IceCube, Pierre Auger and Telescope Array Collaborations have recently reported results on neutral particles (neutrons, photons and neutrinos) which complement the measurements on charged primary cosmic rays at ultra-high energy. The…

High Energy Astrophysical Phenomena · Physics 2019-08-15 Timo Karg , Jaime Alvarez-Muñiz , Daniel Kuempel , Mariangela Settimo , Grigory Rubtsov , Sergey Troitsky

Cross Calibration of Galaxy Cluster Temperatures Measured with NuSTAR, XMM-Newton, and Chandra

The use of galaxy clusters to constrain cosmology is limited in part due to uncertainties in derived cluster masses, which often depend on the gas temperature. Unfortunately, there exists a longstanding discrepancy in temperature…

High Energy Astrophysical Phenomena · Physics 2025-11-13 Fiona Lopez , Daniel R. Wik , Cicely Potter , Randall A. Rojas Bolivar , Ayşegül Tümer , Dominique Eckert , Fabio Gastaldello , Brian W Grefenstette , Kristin Madsen , Ben Maughan , Eric D. Miller , Gerrit Schellenberger , A. N. Wallbank

Detection of highly correlated optical and X-ray variations in SS Cygni with Tomo-e Gozen and NICER

We report on simultaneous optical and X-ray observations of the dwarf nova SS Cyg with Tomo-e Gozen/1.05 m Kiso Schmidt and Neutron star Interior Composition ExploreR (it NICER) / International Space Station (ISS). A total of four…

Cosmology and Nongalactic Astrophysics · Physics 2022-05-19 Y. Nishino , M. Kimura , S. Sako , J. Beniyama , T. Enoto , T. Minezaki , N. Nakaniwa , R. Ohsawa , S. Takita , S. Yamada , K. C. Gendreau

Swift, XMM-Newton, and NuSTAR observations of PSR J2032+4127/MT91 213

We report our recent Swift, NuSTAR, and XMM-Newton X-ray and Lijiang optical observations on PSR J2032+4127/MT91 213, the gamma-ray binary candidate with a period of 45-50 years. The coming periastron of the system was predicted to be in…

High Energy Astrophysical Phenomena · Physics 2017-07-19 K. L. Li , A. K. H. Kong , P. H. T. Tam , X. Hou , J. Takata , C. Y. Hui

STIS Cycle 30 Calibration Programs

We discuss the suite of STIS calibration programs executed during HST Cycle 30, covering the period 2022 Nov 07 through 2023 Nov 05. For each of the 19 current regular calibration programs, we provide brief descriptions of the objectives,…

Instrumentation and Methods for Astrophysics · Physics 2026-01-27 D. Welty , R. Bohlin , J. Carlberg , M. Dallas , S. Hernandez , A. Jones , S. Lockwood , S. Medallon , E. Rickman , D. Stapleton , T. Wheeler

Re-calibration of the Sunspot Number: Status Report

We report progress on the ongoing recalibration of the Wolf sunspot number (SN) and Group sunspot number (GN) following the release of version 2.0 of SN in 2015. This report constitutes both an update of the efforts reported in the 2016…

Solar and Stellar Astrophysics · Physics 2023-03-29 F. Clette , L. Lefèvre , T. Chatzistergos , H. Hayakawa , V. M. Carrasco , R. Arlt , E. W. Cliver , T. Dudok de Wit , T. Friedli , N. Karachik , G. Kopp , M. Lockwood , S. Mathieu , A. Muñoz-Jaramillo , M. Owens , D. Pesnell , A. Pevtsov , L. Svalgaard , I. G. Usoskin , L. van Driel-Gesztelyi , J. M. Vaquero

Snowmass White Paper: prospects for the measurement of top-quark couplings

In this contribution to the 2021 Snowmass community planning exercise that informs the American strategy for particle physics, we present the prospects for measurements of the top-quark couplings at future colliders. Projections are…

High Energy Physics - Phenomenology · Physics 2022-05-05 Gauthier Durieux , Abel Gutiérrez Camacho , Luca Mantani , Víctor Miralles , Marcos Miralles López , María Moreno Llácer , René Poncelet , Eleni Vryonidou , Marcel Vos

The NIRSpec Micro-Shutter Array: Operability and Operations After Two Years of JWST Science

The Near Infrared Spectrograph (NIRSpec) on the James Webb Space Telescope affords the astronomical community an unprecedented space-based Multi-Object Spectroscopy (MOS) capability through the use of a programmable array of…

Instrumentation and Methods for Astrophysics · Physics 2024-08-29 Katie Bechtold , Torsten Böker , David E. Franz , Maurice te Plate , Timothy D. Rawle , Rai Wu , Peter Zeidler

A NICER View on the 2020 Magnetar-Like Outburst of PSR J1846-0258

We report on our monitoring of the strong-field magnetar-like pulsar PSR J1846-0258 with the Neutron Star Interior Composition Explorer (NICER) and the timing and spectral evolution during its outburst in August 2020. Phase-coherent timing…

High Energy Astrophysical Phenomena · Physics 2023-08-02 Chin-Ping Hu , Lucien Kuiper , Alice K. Harding , George Younes , Harsha Blumer , Wynn C. G. Ho , Teruaki Enoto , Cristobal M. Espinoza , Keith Gendreau

Cross-calibrating X-ray detectors with clusters of galaxies: an IACHEC study

We used a sample of 11 nearby relaxed clusters of galaxies observed with the X-ray instruments XMM-Newton (EPIC) pn and MOS, Chandra ACIS-S and ACIS-I and BeppoSAX MECS to examine the cross-calibration of the energy dependence and…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 J. Nevalainen , L. David , M. Guainazzi

Can a hybrid star with constant sound speed parametrization explain the new NICER mass-radius measurements ?

We present a reanalysis of NICER observations of PSR J0740+6620 and PSR J0030+0451 to test the consistency of various nuclear equations of state (EoS) within the framework of hybrid star models. In particular, we examine how different…

Nuclear Theory · Physics 2026-05-07 Suman Pal , Gargi Chaudhuri

Monitoring Observations of SMC X-1's Excursions (MOOSE) I: Program Description and Initial High-State Spectral Results

SMC X-1 has exhibited three super-orbital period excursions since the onset of X-ray monitoring beginning with RXTE's launch in 1995. NICER has recently probed a fourth observed excursion beginning in 2021 with our program Monitoring…

High Energy Astrophysical Phenomena · Physics 2022-06-22 Kristen C. Dage , McKinley Brumback , Joey Neilsen , Chin-Ping Hu , Diego Altamirano , Arash Bahramian , Philip A. Charles , William I. Clarkson , Daryl Haggard , Ryan C. Hickox , Jamie Kennea

Fundamental Symmetries, Neutrons, and Neutrinos (FSNN): Whitepaper for the 2023 NSAC Long Range Plan

This whitepaper presents the research priorities decided on by attendees of the 2022 Town Meeting for Fundamental Symmetries, Neutrons and Neutrinos, which took place December 13-15, 2022 in Chapel Hill, NC, as part of the Nuclear Science…

Nuclear Experiment · Physics 2023-04-12 B. Acharya , C. Adams , A. A. Aleksandrova , K. Alfonso , P. An , S. Baeßler , A. B. Balantekin , P. S. Barbeau , F. Bellini , V. Bellini , R. S. Beminiwattha , J. C. Bernauer , T. Bhattacharya , M. Bishof , A. E. Bolotnikov , P. A. Breur , M. Brodeur , J. P. Brodsky , L. J. Broussard , T. Brunner , D. P. Burdette , J. Caylor , M. Chiu , V. Cirigliano , J. A. Clark , S. M. Clayton , T. V. Daniels , L. Darroch , Z. Davoudi , A. de Gouvêa , W. Dekens , M. Demarteau , D. DeMille , A. Deshpande , J. A. Detwiler , G. W. Dodson , M. J. Dolinski , S. R. Elliott , J. Engel , J. Erler , B. W. Filippone , N. Fomin , J. A. Formaggio , F. Q. L. Friesen , J. Fry , B. K. Fujikawa , G. Fuller , K. Fuyuto , A. T. Gallant , G. Gallina , A. Garcia Ruiz , R. F. Garcia Ruiz , S. Gardner , F. M. Gonzalez , G. Gratta , J. Gruszko , V. Gudkov , V. E. Guiseppe , T. D. Gutierrez , E. V. Hansen , C. A. Hardy , W. C. Haxton , L. Hayen , S. Hedges , K. M. Heeger , M. Heffner , J. Heise , R. Henning , H. Hergert , D. W. Hertzog , D. Hervas Aguilar , J. D. Holt , S. F. Hoogerheide , E. W. Hoppe , M. Horoi , C. R. Howell , M. Huang , N. R. Hutzler , K. Imam , T. M. Ito , A. Jamil , R. V. Janssens , A. M. Jayich , B. J. P. Jones , P. Kammel , K. F. Liu , V. Khachatryan , P. M. King , J. R. Klein , J. P. Kneller , Yu. G. Kolomensky , W. Korsch , R. Krücken , K. S. Kumar , K. D. Launey , D. Lawrence , K. G. Leach , B. Lehnert , B. G. Lenardo , Z. Li , H. -W. Lin , B. Longfellow , S. Lopez-Caceres , C. Lunardini , R. MacLellan , D. M. Markoff , R. H. Maruyama , D. G. Mathews , D. Melconian , E. Mereghetti , P. Mohanmurthy , D. C. Moore , P. E. Mueller , H. P. Mumm , W. Nazarewicz , J. Newby , A. N. Nicholson , E. Novitski , J. C. Nzobadila Ondze , T. O'Donnell , G. D. Orebi Gann , J. L. Orrell , J. L. Ouellet , D. S. Parno , K. D. Paschke , S. Pastore , R. W. Pattie , A. A. Petrov , M. L. Pitt , B. Plaster , D. Pocanic , A. Pocar , A. W. P. Poon , D. C. Radford , H. Rahangdale , B. C. Rasco , H. Rasiwala , R. P. Redwine , A. Ritz , L. Rogers , G. Ron , R. Saldanha , S. Sangiorgio , G. H. Sargsyan , A. Saunders , G. Savard , D. C. Schaper , K. Scholberg , N. D. Scielzo , C. -Y. Seng , A. Shindler , J. T. Singh , M. Singh , V. Singh , W. M. Snow , A. K. Soma , P. A. Souder , D. H. Speller , J. Stachurska , P. T. Surukuchi , B. Tapia Oregui , O. Tomalak , J. A. Torres , O. A. Tyuka , B. A. VanDevender , L. Varriano , R. Vogt , A. Walker-Loud , K. Wamba , S. L. Watkins , F. E. Wietfeldt , W. D. Williams , J. T. Wilson , L. Winslow , X. L. Yan , L. Yang , A. R. Young , X. Zheng , Y. Zhou

Isospin-symmetry violation -- kaons and beyond (ISO-BREAK 25: summary and outlook)

This report summarizes the presentations and discussions during the ISO-BREAK 25 Workshop ``Isospin symmetry violation: kaons and beyond'', which was held at Jan Kochanowski University in Kielce on October 23-25, 2025. We address the…

Nuclear Experiment · Physics 2026-04-20 Marek Gazdzicki , Francesco Giacosa , Katarzyna Grebieszkow , David Blaschke , Marcus Bleicher , Bastian Brandt , Wojciech Brylinski , Tobiasz Czopowicz , Jim Drachenberg , Dipangkar Dutta , Francesca Ercolessi , Mark Gorenstein , Linqin Huang , Oleksii Ivanytskyi , Nicolo Jacazio , Joseph Kapusta , Seweryn Kowalski , Maciej Piotr Lewicki , Manuel Lorenz , Stanislaw Mrowczynski , Vitalii Ozvenchuk , Oleksandra Panova , Roman Planeta , Krzysztof Piasecki , Milena Piotrowska , Rob Pisarski , Damian Pszczel , Johann Rafelski , Martin Rohrmoser , Andrzej Rybicki , Maciej Rybczynski , Radoslaw Ryblewski , Subhasis Samanta , Mayank Singh , Joanna Maria Stepaniak , Grzegorz Stefanek , Herbert Stroebele , Tatjana Susa , Leonardo Tinti , Ludwik Turko , Oleksandr Vitiuk , Klaus Werner , Hanna Zbroszczyk

Precision QCD, Hadronic Structure & Forward QCD, Heavy Ions: Report of Energy Frontier Topical Groups 5, 6, 7 submitted to Snowmass 2021

This report was prepared on behalf of three Energy Frontier Topical Groups of the Snowmass 2021 Community Planning Exercise. It summarizes the status and implications of studies of strong interactions in high-energy experiments and QCD…

High Energy Physics - Phenomenology · Physics 2022-11-22 M. Begel , S. Hoeche , M. Schmitt , H. -W. Lin , P. M. Nadolsky , C. Royon , Y-J. Lee , S. Mukherjee , C. Baldenegro , J. Campbell , G. Chachamis , F. G. Celiberto , A. M. Cooper-Sarkar , D. d'Enterria , M. Diefenthaler , M. Fucilla , M. V. Garzelli , M. Guzzi , M. Hentschinski , T. J. Hobbs , J. Huston , J. Isaacson , S. R. Klein , F. Kling , P. Kotko , Yu. V. Kovchegov , G. Krintiras , A. S. Kronfeld , K. Kutak , B. Mistlberger , I. Moult , S. Mrenna , B. Nachman , M. Narain , F. I. Olness , A. Papa , R. D. Pisarski , M. Pitt , S. Rappoccio , L. Reina , J. Reuter , M. H. Reno , G. P. Salam , M. Strikman , N. Tran , A. Tricoli , M. Ubiali , A. van Hameren , A. Vossen , K. Xie

ATLAS Photometry of Interstellar Object 3I/ATLAS

We present calibrated ATLAS photometry of the interstellar comet 3I/ATLAS (C/2025 N1) from 28 March through 29 Aug 2025, obtained with the five-site, robotic ATLAS network in the c (420-650~nm), o (560-820~nm), and Teide w (420-720~nm)…

Earth and Planetary Astrophysics · Physics 2025-11-12 John Tonry , Larry Denneau , Miguel Alarcon , Alejandro Clocchiatti , Nicolas Erasmus , Alan Fitzsimmons , Javier Licandro , Karen Meech , Robert Siverd , Henry Weiland

The Present and Future of QCD

This White Paper presents the community inputs and scientific conclusions from the Hot and Cold QCD Town Meeting that took place September 23-25, 2022 at MIT, as part of the Nuclear Science Advisory Committee (NSAC) 2023 Long Range Planning…

High Energy Physics - Phenomenology · Physics 2024-04-26 P. Achenbach , D. Adhikari , A. Afanasev , F. Afzal , C. A. Aidala , A. Al-bataineh , D. K. Almaalol , M. Amaryan , D. Androić , W. R. Armstrong , M. Arratia , J. Arrington , A. Asaturyan , E. C. Aschenauer , H. Atac , H. Avakian , T. Averett , C. Ayerbe Gayoso , X. Bai , K. N. Barish , N. Barnea , G. Basar , M. Battaglieri , A. A. Baty , I. Bautista , A. Bazilevsky , C. Beattie , S. C. Behera , V. Bellini , R. Bellwied , J. F. Benesch , F. Benmokhtar , C. A. Bernardes , J. C. Bernauer , H. Bhatt , S. Bhatta , M. Boer , T. J. Boettcher , S. A. Bogacz , H. J. Bossi , J. D. Brandenburg , E. J. Brash , R. A. Briceño , W. J. Briscoe , S. J. Brodsky , D. A. Brown , V. D. Burkert , H. Caines , I. A. Cali , A. Camsonne , D. S. Carman , J. Caylor , S. Cerci , M. Chamizo Llatas , S. Chatterjee , J. P. Chen , Y. Chen , Y. -C. Chen , Y. -T. Chien , P. -C. Chou , X. Chu , E. Chudakov , E. Cline , I. C. Cloët , P. L. Cole , M. E. Connors , M. Constantinou , W. Cosyn , S. Covrig Dusa , R. Cruz-Torres , U. D'Alesio , C. da Silva , Z. Davoudi , C. T. Dean , D. J. Dean , M. Demarteau , A. Deshpande , W. Detmold , A. Deur , B. R. Devkota , S. Dhital , M. Diefenthaler , S. Dobbs , M. Döring , X. Dong , R. Dotel , K. A. Dow , E. J. Downie , J. L. Drachenberg , A. Dumitru , J. C. Dunlop , R. Dupre , J. M. Durham , D. Dutta , R. G. Edwards , R. J. Ehlers , L. El Fassi , M. Elaasar , L. Elouadrhiri , M. Engelhardt , R. Ent , S. Esumi , O. Evdokimov , O. Eyser , C. Fanelli , R. Fatemi , I. P. Fernando , F. A. Flor , N. Fomin , A. D. Frawley , T. Frederico , R. J. Fries , C. Gal , B. R. Gamage , L. Gamberg , H. Gao , D. Gaskell , F. Geurts , Y. Ghandilyan , N. Ghimire , R. Gilman , C. Gleason , K. Gnanvo , R. W. Gothe , S. V. Greene , H. W. Grießhammer , S. K. Grossberndt , B. Grube , D. C. Hackett , T. J. Hague , H. Hakobyan , J. -O. Hansen , Y. Hatta , M. Hattawy , L. B. Havener , O. Hen , W. Henry , D. W. Higinbotham , T. J. Hobbs , A. M. Hodges , T. Holmstrom , B. Hong , T. Horn , C. R. Howell , H. Z. Huang , M. Huang , S. Huang , G. M. Huber , C. E. Hyde , E. L. Isupov , P. M. Jacobs , J. Jalilian-Marian , A. Jentsch , H. Jheng , C. -R. Ji , X. Ji , J. Jia , D. C. Jones , M. K. Jones , N. Kalantarians , G. Kalicy , Z. B. Kang , J. M. Karthein , D. Keller , C. Keppel , V. Khachatryan , D. E. Kharzeev , H. Kim , M. Kim , Y. Kim , P. M. King , E. Kinney , S. R. Klein , H. S. Ko , V. Koch , M. Kohl , Y. V. Kovchegov , G. K. Krintiras , V. Kubarovsky , S. E. Kuhn , K. S. Kumar , T. Kutz , J. G. Lajoie , J. Lauret , I. Lavrukhin , D. Lawrence , J. H. Lee , K. Lee , S. Lee , Y. -J. Lee , S. Li , W. Li , Xiaqing Li , Xuan Li , J. Liao , H. -W. Lin , M. A. Lisa , K. -F. Liu , M. X. Liu , T. Liu , S. Liuti , N. Liyanage , W. J. Llope , C. Loizides , R. Longo , W. Lorenzon , S. Lunkenheimer , X. Luo , R. Ma , B. McKinnon , D. G. Meekins , Y. Mehtar-Tani , W. Melnitchouk , A. Metz , C. A. Meyer , Z. -E. Meziani , R. Michaels , J. K. L. Michel , R. G. Milner , H. Mkrtchyan , P. Mohanmurthy , B. Mohanty , V. I. Mokeev , D. H. Moon , I. A. Mooney , C. Morningstar , D. P. Morrison , B. Müller , S. Mukherjee , J. Mulligan , C. Munoz Camacho , J. A. Murillo Quijada , M. J. Murray , S. A. Nadeeshani , P. Nadel-Turonski , J. D. Nam , C. E. Nattrass , G. Nijs , J. Noronha , J. Noronha-Hostler , N. Novitzky , M. Nycz , F. I. Olness , J. D. Osborn , R. Pak , B. Pandey , M. Paolone , Z. Papandreou , J. -F. Paquet , S. Park , K. D. Paschke , B. Pasquini , E. Pasyuk , T. Patel , A. Patton , C. Paudel , C. Peng , J. C. Peng , H. Pereira Da Costa , D. V. Perepelitsa , M. J. Peters , P. Petreczky , R. D. Pisarski , D. Pitonyak , M. A. Ploskon , M. Posik , J. Poudel , R. Pradhan , A. Prokudin , C. A. Pruneau , A. J. R. Puckett , P. Pujahari , J. Putschke , J. R. Pybus , J. -W. Qiu , K. Rajagopal , C. Ratti , K. F. Read , R. Reed , D. G. Richards , C. Riedl , F. Ringer , T. Rinn , J. Rittenhouse West , J. Roche , A. Rodas , G. Roland , F. Romero-López , P. Rossi , T. Rostomyan , L. Ruan , O. M. Ruimi , N. R. Saha , N. R. Sahoo , T. Sakaguchi , F. Salazar , C. W. Salgado , G. Salmè , S. Salur , S. N. Santiesteban , M. M. Sargsian , M. Sarsour , N. Sato , T. Satogata , S. Sawada , T. Schäfer , B. Scheihing-Hitschfeld , B. Schenke , S. T. Schindler , A. Schmidt , R. Seidl , M. H. Shabestari , P. E. Shanahan , C. Shen , T. -A. Sheng , M. R. Shepherd , A. M. Sickles , M. D. Sievert , K. L. Smith , Y. Song , A. Sorensen , P. A. Souder , N. Sparveris , S. Srednyak , A. G. Stahl Leiton , A. M. Stasto , P. Steinberg , S. Stepanyan , M. Stephanov , J. R. Stevens , D. J. Stewart , I. W. Stewart , M. Stojanovic , I. Strakovsky , S. Strauch , M. Strickland , D. Sunar Cerci , M. Suresh , B. Surrow , S. Syritsyn , A. P. Szczepaniak , A. S. Tadepalli , A. H. Tang , J. D. Tapia Takaki , T. J. Tarnowsky , A. N. Tawfik , M. I. Taylor , C. Tennant , A. Thiel , D. Thomas , Y. Tian , A. R. Timmins , P. Tribedy , Z. Tu , S. Tuo , T. Ullrich , E. Umaka , D. W. Upton , J. P. Vary , J. Velkovska , R. Venugopalan , A. Vijayakumar , I. Vitev , W. Vogelsang , R. Vogt , A. Vossen , E. Voutier , V. Vovchenko , A. Walker-Loud , F. Wang , J. Wang , X. Wang , X. -N. Wang , L. B. Weinstein , T. J. Wenaus , S. Weyhmiller , S. W. Wissink , B. Wojtsekhowski , C. P. Wong , M. H. Wood , Y. Wunderlich , B. Wyslouch , B. W. Xiao , W. Xie , W. Xiong , N. Xu , Q. H. Xu , Z. Xu , D. Yaari , X. Yao , Z. Ye , Z. H. Ye , C. Yero , F. Yuan , W. A. Zajc , C. Zhang , J. Zhang , F. Zhao , Y. Zhao , Z. W. Zhao , X. Zheng , J. Zhou , M. Zurek

Report of the Topical Group on Cosmic Frontier 5 Dark Energy and Cosmic Acceleration: Cosmic Dawn and Before for Snowmass 2021

This report summarizes the envisioned research activities as gathered from the Snowmass 2021 CF5 working group concerning Dark Energy and Cosmic Acceleration: Cosmic Dawn and Before. The scientific goals are to study inflation and to search…

High Energy Physics - Experiment · Physics 2022-09-20 Clarence L. Chang , Laura Newburgh , Deirdre Shoemaker , Stefan W. Ballmer , Daniel Green , Renee Hlozek , Kevin M. Huffenberger , Kirit S. Karkare , Adrian Liu , Vuk Mandic , Jeff McMahon , Benjamin Wallisch

Delving into the depths of NGC 3783 with XRISM II. Cross-calibration of X-ray instruments used in the large, multi-mission observational campaign

Accurate X-ray spectroscopic measurements are fundamental for deriving basic physical parameters of the most abundant baryon components in the Universe. The plethora of X-ray observatories currently operational enables a panchromatic view…

High Energy Astrophysical Phenomena · Physics 2025-10-15 XRISM collaboration

The supergiant fast X-ray transient IGRJ18483-0311 in quiescence: XMM-Newton, Swift, and Chandra observations

IGR J18483-0311 was discovered with INTEGRAL in 2003 and later classified as a supergiant fast X-ray transient. It was observed in outburst many times, but its quiescent state is still poorly known. Here we present the results of…

High Energy Astrophysical Phenomena · Physics 2015-05-13 A. Giunta , E. Bozzo , F. Bernardini , G. Israel , L. Stella , M. Falanga , S. Campana , A. Bazzano , A. J. Dean , M. Mendez