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Astro-ph Archive Reorganization (Revised 12/30/97)

Because of the continued growth of the astro-ph archive (see the monthly totals), interest has been expressed in a reorganization, similar to that in the cond-mat and physics archives.

The astro-ph archive will now allow a Subj-class: header in submissions, which will indicate the subject area(s) for a paper. The Subj-class: header will be optional but recommended for all submissions. Depending on user feedback and archive growth, in the future it may become mandatory.

Subject classes must be chosen from a list of recognized possibilities. Based on user feedback, this list has been revised from the original. The detailed topic areas under each subject class are provided to illustrate the intended content; these lists of detailed topic areas are not meant to be complete but should clarify the nature of the subject classes. The proposed subject class list is as follows:

Cosmology and Large Scale Structure
structure formation; clusters, superclusters, voids; primordial element abundances; age and other global cosmological parameters; extragalactic distance scale; microwave background; dark matter
Particle Astrophysics and the Very Early Universe
baryogenesis, leptogenesis; particle production and decay; inflationary models; reheating; axions; monopoles; WIMPs; cosmic strings; primordial black holes
Galaxies
structure; formation; halos; AGNs; QSOs; jets; evolution; morphology; globular clusters; the Milky Way
Stars and Compact Objects
stellar structure; stellar atmospheres; stellar winds; stellar evolution; stellar populations; pulsation, rotation, variability; star formation; extrasolar planetary systems; giants; supernovae; novae; stellar remnants and accretion systems; black holes, white dwarfs, neutron stars; brown dwarfs
Solar System
solar physics; solar neutrinos; interplanetary medium; planetary physics; comets; asteroids; meteorites
Diffuse Matter
interstellar medium; intergalactic medium; clouds; cooling flows; H-II regions; planetary nebulae; dust
Astrophysical Processes
radiative transfer; MHD and astrophysical plasmas; hydrodynamics; dense matter; nuclear reactions; chemical processes
Dynamics and Mechanics
stellar and galactic dynamics (including N-body simulations); celestial mechanics; astrometry
High Energy Astrophysics
production and detection of X-rays, gamma-rays, charged particles, ...; acceleration mechanisms; cosmic-ray propagation; gamma-ray bursts
Instrumentation and Methods
detector and telescope design; experiment proposals; methods for data analysis; statistical methods
History and Education
historical and general educational articles of specific interest to the astrophysics community
The subject classes are not meant to be highly orthogonal, but should provide a complete covering. Authors should feel free to choose two or three subject classes for their papers if they feel that they lie at an intersection. We welcome suggestions for modifications or additions.

A Subj-class: header can be included with submissions most easily using the select menu for web submissions, or alternatively it can be included in e-mail submissions; see our abstract preparation help.

It will be possible to subscribe to daily e-mail listings for specific subject areas, or to continue subscribing to the full listings. See the subscription help.

We believe that this is a much better method for expansion than adding new archives. Later expansion or change will have minimal impact, and this method provides a unified front for searching and other value-added items.

We would like to hear what you think of this general reorganization, but we especially want comments on the list of subject classes. The subject classes should not only effectively cover the relevant subject matters, but should also encourage submissions from groups of people who do not currently make effective use of the archive.

Surely we have missed some important areas and perhaps did not pick the best names. Such oversights can easily be corrected; we await user feedback to correct these and other omissions. The idea is not to come up with a detailed classification like PACS, but to provide a controlled and human-usable interface to the large number of submissions.

Initially, it may be necessary to add the appropriate Subj-class header manually here. We hope, however, that authors will adapt quickly to the new scheme so that manual intervention will become unnecessary.

Send your comments to www-admin@xxx.lanl.gov.