The X-ray emission of the Seyfert 2 galaxy MCG-01-24-12

Abstract

We present a detailed X-ray spectral analysis of the nearby Seyfert 2 galaxy MCG-01-24-12 based on a multi-epoch data set. Data have been taken with different X-ray satellites, namely XMM-Newton, NuSTAR, Swift and Chandra and cover different time intervals, from years down to a few days. From 2006 to 2013 the source had a 2-10 keV flux of $\sim$1.5$\times$10${}^{-11}$ erg cm${}^{-2}$ s${}^{-1}$, consistent with archival observations based on \textit{HEAO} and \textit{BeppoSAX} data, though a 2019 \textit{Chandra} snapshot caught the source in an extreme low flux state, a factor of $\sim$10 fainter than its historical one. Based on phenomenological and physically motivated models, we find the X-ray spectrum of MCG-01-24-12 to be best modelled by a power-law continuum emission with $\Gamma$=1.76$\pm$0.09 with a high energy cut-off at E${}_{\mathrm{c}}=70_{-14}^{+21}$ keV that is absorbed by a fairly constant column density of N${}_{\mathrm{H}}$=(6.3$\pm$0.5)$\times 10^{22}$ cm${}^{-2}$. These quantities allowed us to estimate the properties of the hot corona in MCG-01-24-12 for the cases of a spherical or slab-like hot Comptonising plasma to be kT${}_{\mathrm{e}}$=27${}_{-4}^{+8}$ keV, ${\tau }_{\mathrm{e}}$=5.5$\pm$1.3 and kT${}_{\mathrm{e}}$=28${}_{-5}^{+7}$ keV, $\tau$=3.2$\pm$0.8, respectively. Finally, despite the short duration of the exposures, possible evidence of the presence of outflows is discussed.

12 pages, 10 figures, accepted for publication in A&A

References in corpus (19)

• HI4PI: A full-sky HI survey based on EBHIS and GASS
• AGN Dusty Tori: I. Handling of Clumpy Media
• BAT AGN Spectroscopic Survey - V. X-ray properties of the Swift/BAT 70-month AGN catalog
• On the origin of soft X-rays in obscured AGN: answers from high-resolution spectroscopy with XMM-Newton
• Discovery of multiple Lorentzian components in the X-ray timing properties of the Narrow Line Seyfert 1 Ark 564
• Properties of AGN coronae in the NuSTAR era II: hybrid plasma
• Rapid N_H changes in NGC 4151
• Tracing the accretion history of supermassive Black Holes through X-ray variability: results from the Chandra Deep Field-South
• Ensemble X-ray variability of Active Galactic Nuclei. II. Excess Variance and updated Structure Function
• NuSTAR Survey of Obscured Swift/BAT-selected Active Galactic Nuclei: II. Median High-energy Cutoff in Seyfert II Hard X-ray Spectra
• XMM-Newton broad-band observations of NGC 7582: Nh variations and fading out of the active nucleus
• A long term study of AGN X-ray variability. Structure function analysis on a ROSAT-XMM quasar sample
• The Multi-Layer Variable Absorbers in NGC 1365 Revealed by XMM-Newton and NuSTAR
• Probing the circumnuclear absorbing medium of the buried AGN in NGC 1068 through NuSTAR observations
• Extending Virial Black Hole Mass Estimates to Low-Luminosity or Obscured AGN: the cases of NGC 4395 and MCG -01-24-012
• A hard look at local, optically-selected, obscured Seyfert galaxies
• Monitoring the Violent Activity from the Inner Accretion Disk of the Seyfert 1.9 Galaxy NGC 2992 with RXTE
• Nustar Measurement Of Coronal Temperature In Two Luminous, High Redshift Qsos
• A hard look at NGC 5347: revealing a nearby Compton-thick AGN

Cited by in corpus (5)

• The properties of the X-ray corona in the distant ($z=3.91$) quasar APM 08279+5255
• The lively accretion disk in NGC 2992. II. The 2019/2021 X-ray monitoring campaigns
• The NuSTAR view of the changing look AGN ESO 323-G77
• NGC 6860, Mrk 915, and MCG -01-24-012. II. Inflowing and outflowing cold molecular gas and the connection with ionized gas in Seyfert galaxies
• NGC 6860, Mrk 915 and MCG -01-24-012. I. Spatial anti-correlation between cold molecular and ionized gas distributions in Seyfert galaxies