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PEARLS: NuSTAR and XMM-Newton Extragalactic Survey of the JWST North Ecliptic Pole Time-domain Field II

  • Xiurui Zhao
  • , Francesca Civano
  • , Christopher N.A. Willmer
  • , Silvia Bonoli
  • , Chien Ting Chen
  • , Samantha Creech
  • , Renato Dupke
  • , Francesca M. Fornasini
  • , Rolf A. Jansen
  • , Satoshi Kikuta
  • , Anton M. Koekemoer
  • , Sibasish Laha
  • , Stefano Marchesi
  • , Rosalia O’Brien
  • , Ross Silver
  • , S. P. Willner
  • , Rogier A. Windhorst
  • , Haojing Yan
  • , Jailson Alcaniz
  • , Narciso Benitez
  • Saulo Carneiro, Javier Cenarro, David Cristóbal-Hornillos, Alessandro Ederoclite, Antonio Hernán-Caballero, Carlos López-Sanjuan, Antonio Marín-Franch, Claudia Mendes de Oliveira, Mariano Moles, Laerte Sodré, Keith Taylor, Jesús Varela, Héctor Vázquez Ramió

Research output: Contribution to journalArticlepeer-review

Abstract

We present the second NuSTAR and XMM-Newton extragalactic survey of the JWST north ecliptic pole (NEP) time-domain field (TDF). The first NuSTAR NEP-TDF survey had 681 ks total exposure time executed in NuSTAR cycle 5 in 2019 and 2020. This second survey, acquired from 2020 to 2022 in cycle 6, adds 880 ks of NuSTAR exposure time. The overall NuSTAR NEP-TDF survey is the most sensitive NuSTAR extragalactic survey to date, and a total of 60 sources were detected above the 95% reliability threshold. We constrain the hard X-ray number counts, log N - log S , down to 1.7 × 10−14 erg cm−2 s−1 at 8-24 keV and detect an excess of hard X-ray sources at the faint end. About 47% of the NuSTAR-detected sources are heavily obscured (N H > 1023 cm−2), and 18 − 8 + 20 % of the NuSTAR-detected sources are Compton-thick (N H > 1024 cm−2). These fractions are consistent with those measured in other NuSTAR surveys. Four sources presented >2σ variability in the 3 yr survey. In addition to NuSTAR, a total of 62 ks of XMM-Newton observations were taken during NuSTAR cycle 6. The XMM-Newton observations provide soft X-ray (0.5-10 keV) coverage in the same field and enable more robust identification of the visible and infrared counterparts of the NuSTAR-detected sources. A total of 286 soft X-ray sources were detected, out of which 214 XMM-Newton sources have secure counterparts from multiwavelength catalogs.

Original languageEnglish (US)
Article number188
JournalAstrophysical Journal
Volume965
Issue number2
DOIs
StatePublished - Apr 1 2024

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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  • JWST NEP TDF NuSTAR and XMM-Newton survey

    Zhao, X. (Creator), Civano, F. (Creator), Willmer, C. N. A. (Contributor), Bonoli, S. (Creator), Chen, C.-T. (Creator), Creech, S. (Creator), Dupke, R. (Creator), Fornasini, F. M. (Creator), Jansen, R. A. (Creator), Kikuta, S. (Creator), Koekemoer, A. M. (Creator), Laha, S. (Creator), Marchesi, S. (Creator), O’Brien, R. (Contributor), Silver, R. (Creator), Willner, S. P. (Contributor), Windhorst, R. A. (Creator), Yan, H. (Creator), Alcaniz, J. (Creator), Benitez, N. (Creator), Carneiro, S. (Creator), Cenarro, J. (Creator), Cristóbal-Hornillos, D. (Contributor), Ederoclite, A. (Creator), Hernán-Caballero, A. (Contributor), López-Sanjuan, C. (Contributor), Marín-Franch, A. (Contributor), de Oliveira, C. M. (Contributor), Moles, M. (Creator), Taylor, K. (Creator), Varela, J. (Creator) & Ramió, H. V. (Contributor), Centre de Donnees Strasbourg (CDS), 2024

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