We have discovered low-luminosity AGNs in over 30 bona fide dwarf galaxies. Theobjects are the least massive galaxies known to contain central black holes.Correspondingly, their black holes are almost certain to be in the 10**3 - 10**6M_sun range critical for investigations into the co-evolution of galaxies andsupermassive black holes. Surprisingly, *all* of the dwarf-galaxy AGNs we havefound are faint, narrow-line (type 2) objects. Recent theoretical work suggeststhat at very low luminosities AGNs may lack obscuring tori and/or classicalBLRs. We propose use XMM observations to test these models. The data will revealwhether or not the objects are obscured, which will forward our understanding ofthe physical nature of AGNs and the origin of their fundamental structure.
Ensemble X-ray variability of active galactic nuclei. II. Excess variance and updated structure function |Vagnetti, F., Middei, R., et al. | A&A | 593-55 | 2016 | 2016A&A...593A..55V | http://ui.adsabs.harvard.edu/#abs/2016A&A...593A..55V
A new sample of X-ray selected narrow emission-line galaxies. II. Looking for True Seyfert 2 |Pons, E., Watson, M. G., | A&A | 594-72 | 2016 | 2016A&A...594A..72P | http://ui.adsabs.harvard.edu/#abs/2016A&A...594A..72P
A Catalog Sample of Low-mass Galaxies Observed in X-Rays with Central Candidate Black Holes |Nucita, A. A., Manni, L., et al. | ApJ | 837-66 | 2017 | 2017ApJ...837...66N | http://ui.adsabs.harvard.edu/#abs/2017ApJ...837...66N
New Physical Insights about Tidal Disruption Events from a Comprehensive Observational Inventory at X-Ray Wavelengths |Auchettl, Katie, Guillochon, James, | ApJ | 838-149 | 2017 | 2017ApJ...838..149A | http://ui.adsabs.harvard.edu/#abs/2017ApJ...838..149A
A Luminous X-Ray Transient in SDSS J143359.16+400636.0: A Likely Tidal Disruption Event |Brightman, Murray, Ward, Charlotte, et al. | ApJ | 909-102 | 2021 | 2021ApJ...909..102B | http://ui.adsabs.harvard.edu/#abs/2021ApJ...909..102B
NGC 4117: A New Compton-thick AGN Revealed by Broadband X-Ray Spectral Analysis |Mohanadas, Pavithra, Annuar, Adlyka, | RAA | 23-55002 | 2023 | 2023RAA....23e5002M | http://ui.adsabs.harvard.edu/#abs/2023RAA....23e5002M
The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII, O VIII, and Fe L-shell Transitions |Pan, Zeyang, Qu, Zhijie, et al. | ApJS | 271-62 | 2024 | 2024ApJS..271...62P | http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P
Robust constraints on feebly interacting particles using XMM-Newton |Luque, Pedro De la Torre, Balaji, Shyam, | PhRvD | 109-L101305 | 2024 | 2024PhRvD.109j1305L | http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L
Multimessenger search for electrophilic feebly interacting particles from supernovae |Luque, Pedro De la Torre, Balaji, Shyam, | PhRvD | 109-103028 | 2024 | 2024PhRvD.109j3028L | http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L
Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints |De la Torre Luque, Pedro, Balaji, Shyam, | ApJ | 968-46 | 2024 | 2024ApJ...968...46D | http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2010-05-07T14:06:17Z/2010-12-22T01:46:25Z
Version
17.56_20190403_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
European Space Agency, Dr Edward Moran, 2012, 'Black Holes at the Centers of Dwarf Galaxies', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-szkqyzy
