Diffuse X-ray emission from the spiral galaxy NGC 2403 discovered with Chandra

Abstract

We have detected diffuse soft X-ray emission (0.4-1 keV) from the disk of the spiral galaxy NGC 2403 with Chandra. This diffuse emission (with a total luminosity of 2.1 x 10^38 erg/s and a gas temperature of 2-8 x 10^6 K) is well separated from the numerous bright point sources. NGC 2403 is a luminous spiral galaxy with a high rate of star formation. Recent HI observations have revealed an extended HI halo with anomalous velocities and a general inflow towards the central regions of the galaxy. This result and the present detection of a diffuse, hot X-ray emitting gas point at a very active disk-halo connection and galactic fountain types of phenomena.

13 pages, 4 figures. Accepted for publication in ApJ

References in corpus (8)

• Ultraluminous X-Ray Sources in External Galaxies
• Deep H I Survey of the Spiral Galaxy NGC 2403
• The HI Halo of NGC 891
• RXTE Measurement of the Diffuse X-ray Emission From the Galactic Ridge: Implications for the Energetics of the Interstellar Medium
• A new, kinematically anomalous HI component in the spiral galaxy NGC 2403
• Chandra Detection of a Hot Gaseous Corona Around the Edge-on Galaxy NGC 4631
• Properties of the Chandra Sources in M81
• Ambiguities in fits to the complex X-ray spectra of starburst galaxies

Cited by in corpus (27)

• The MORGANA model for the rise of galaxies and active nuclei
• Continuum Halos in Nearby Galaxies -- an EVLA Survey (CHANG-ES) -- I: Introduction to the Survey
• The JCMT Nearby Galaxies Legacy Survey III: Comparisons of cold dust, polycyclic aromatic hydrocarbons, molecular gas, and atomic gas in NGC 2403
• X-ray emission from the extended disks of spiral galaxies
• Hydrodynamical simulations of Galactic fountains I: evolution of single fountains
• Kinematics of the Ionised Gas in the Spiral Galaxy NGC 2403
• Imaging Fabry-Perot Spectroscopy of NGC 5775: Kinematics of the Diffuse Ionized Gas Halo
• Physical regimes for feedback in galaxy formation
• Kinematics of the Atomic ISM in M33 on 80 pc scales
• Diffuse X-ray emission in spiral galaxies
• The role of gas infall in the evolution of disc galaxies
• High-Velocity Clouds in the Nearby Spiral Galaxy M 83
• The impact of cosmic rays on dynamical balance and disk-halo interaction in Lstar disk galaxies
• XMM-Newton observations of the M31 northern disk: Properties of selected X-ray sources and diffuse emission
• A Chandra Observation of the Nearby Sculptor Group Sd Galaxy NGC 7793
• Spin Parity of Spiral Galaxies I -- Corroborative Evidence for Trailing Spirals
• The Chandra Local Volume Survey I: The X-ray Point Source Populations of NGC 55, NGC 2403, and NGC 4214
• Chandra and XMM-Newton discovery of the transient X-ray pulsar in the nearby spiral galaxy NGC2403
• An XMM-Newton view of M101 - III. Diffuse X-ray emission
• The Origin and Distribution of Diffuse Hot Gas in the Spiral Galaxy NGC 3184
• A Kinematic Analysis of Ionised Extraplanar Gas in the Spiral Galaxies NGC 3982 and NGC 4152
• 2D kinematics of the edge-on spiral galaxy ESO 379-G006
• An X-ray View of Star Formation in the Central 3 kpc of NGC 2403
• The 617 MHz - $\lambda$ 850 $\mu$m Correlation (Cosmic Rays and Cold Dust) in NGC 3044 and NGC 4157
• Predicting HCN, HCO + , multi-transition CO, and dust emission of star-forming galaxies: Constraining the properties of resolved gas and dust disks of local spiral galaxies
• Soft X-ray emission from the inner disk of M33
• Resolved nuclear kinematics link the formation and growth of nuclear star clusters with the evolution of their early and late-type hosts