XMM-Newton Large Programme Details



PROPOSAL OVERVIEW
Proposal Title Too B or not too B: the quest for the PULX accretion
Proposal Category Isolated and Binary Compact Objects & their Evolution
Proposal Type LARGE PROGRAM
Proposal Id 088355
Number of Observations 1
Total exposure time (ks) 399

PI DETAILS
PI Prof GianLuca Israel
Institute INAF
Country ITALY

CO-INVESTIGATORS
Name Country
L. Zampieri ITALY
A. De Luca ITALY
M. Bachetti ITALY
F. Pintore ITALY
A. Belfiore ITALY
T. Roberts UNITED KINGDOM
F. Furst SPAIN
D. Walton UNITED KINGDOM
P. Esposito ITALY
F. Harrison UNITED KINGDOM
F. Haberl GERMANY
H. Earnshaw UNITED STATES
R. Turoll ITALY
C. Pinto ITALY
A. Papitto ITALY
L. Stella ITALY
C. Selvaggio ITALY
A. Tiengo ITALY
M. Middelton UNITED KINGDOM
A. MANY OTHERS OTHER

ABSTRACT
Within the framework of the AO17 UNSEEN XMM Large Program, we discovered a new 2.8-s Pulsating ULX hosted in a massive binary system (Mc>8Msun) in M51 with an orbital period of 2 days and a super-orbital modulation of about 38 days. Being a persistent source (unlike all the other known PULXs) it is very well suited for deeper studies. The present proposal is two-folded: improving our understanding of the accretion phenomena onto Neutron Stars (NSs) at extreme rates and extending our knowledge of M51 ULX-7. The requested pointings, together with the archival datasets, will allow us to measure crucial orbital parameters in order to prove whether PULXs have indeed super-Eddington luminosities or are mainly beamed- emitting NSs, a long standing problem in the field.

PAPERS
Authors marked in red are (co-)investigators in the proposal

Classification of papers are:
- CLASS 1:   papers that present specific XMM-Newton observations
- CLASS 2: papers that refer to published XMM-Newton results with complementary observations, follow-up analysis, or theoretical analysis
- CLASS 3: further deliveries which resulted from the program and which are made available to the community (e.g. source catalogues, processed images or spectra in public data base)
- CLASS 4: comments and suggestions from PI

CLASS 1 (2 references)
  1. " X-ray spectral variability of low ionization nuclear emission line regions (LINERs) "
    Hernández-García, L.; González-Martín, O.; Masegosa, J.; Márquez, I.;
    2015 - Highlights of Spanish Astrophysics VIII, Proceedings of the XI Scientific Meeting of the Spanish Astronomical Society held on September 8-12, 2014, in Teruel, Spain, ISBN 978-84-606-8760-3. A. J. Cenarro, F. Figueras, C. Hernández-Monteagudo, J. Trujillo Bueno, and L. Valdivielso (eds.), p. 228-233
    Number of Citations: 0
    https://ui.adsabs.harvard.edu/search/q=bibcode:2015hsa8.conf..228H
    DOI: null

  2. " Skipping a beat: Discovery of persistent quasi-periodic oscillations associated with pulsed fraction drop of the spin signal in M51 ULX-7 "
    Imbrogno, Matteo; Motta, Sara Elisa; Amato, Roberta; Israel, Gian Luca; Rodríguez Castillo, Guillermo Andres; Brightman, Murray; Casella, Piergiorgio; Bachetti, Matteo; Fürst, Felix; Stella, Luigi; Pinto, Ciro; Pintore, Fabio; Tombesi, Francesco; Gúrpide, Andrés; Middleton, Matthew J.; Salvaggio, Chiara; Tiengo, Andrea; Belfiore, Andrea; De Luca, Andrea; Esposito, Paolo; Wolter, Anna; Earnshaw, Hannah P.; Walton, Dominic J.; Roberts, Timothy P.; Zampieri, Luca; Marelli, Martino; Salvaterra, Ruben;
    2024 - Astronomy & Astrophysics, Volume 689, id.A284, 14 pp.
    Number of Citations: 0
    https://ui.adsabs.harvard.edu/search/q=bibcode:2024A&A...689A.284I
    DOI: 10.48550/arXiv.2407.12904