Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.229..129l&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 229, Nov. 1, 1987, p. 129-141. Research supported by th
Astronomy and Astrophysics
Astronomy
9
Elliptical Galaxies, Galactic Evolution, Galactic Radiation, Interstellar Gas, Star Formation, Astronomical Models, Galactic Nuclei, Halos, Stellar Spectrophotometry
Scientific paper
An alternative to the merger model for producing systems of shells around elliptical galaxies is proposed wherein a one-sided or highly asymmetric disturbance in the nuclear or core region leads to a period of enhanced star formation as it propagates through the hot interstellar medium observed in X-rays. If such a disturbance can induce cooler, denser gas co-existing with the hot phase to form observable stars at a rate comparable to the inferred mass-deposition rates in these galaxies, the newly-formed stars will be created with the appropriate phase-space characteristics for the phase-wrapping mechanism invoked in the context of the merger hypothesis to occur. Thus a system of optical shells with the observed wide range of binding energies can be produced from a single disturbance having a wide variety of possible energies and epochs.
Fabian Andrea C.
Loewenstein Michael
Nulsen Paul E. J.
No associations
LandOfFree
Formation of shells in elliptical galaxies from interstellar gas does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Formation of shells in elliptical galaxies from interstellar gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Formation of shells in elliptical galaxies from interstellar gas will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1715401