English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present a second catalog of HI sources detected in the Arecibo Legacy FastALFA Survey. We report 488 detections over 135 square degrees, within theregion of the sky having 22h<RA<03h and +26deg<Dec<+28deg. We present here thedetections that have either (a) S/N>6.5, where the reliability of the catalogis better than 95% or (b) 5.0<S/N<6.5 and a previously measured redshift thatcorroborates our detection. Of the 488 objects presented here, 49 are HighVelocity Clouds or clumps thereof with negative heliocentric recessionvelocities. These clouds are mostly very compact and isolated, while some ofthem are associated with large features such as Wright's Cloud or the northernextension of the Magellanic Stream. The remaining 439 candidate detections areidentified as extragalactic objects and have all been matched with opticalcounterparts. Five of the six galaxies detected with M(HI)<10^7.5 solar massesare satellites of either the NGC672/IC1727 nearby galaxy pair or theirneighboring dwarf irregular galaxy NGC784. The data of this catalog releaseinclude a slice through the Pisces-Perseus foreground void, a large nearbyunderdensity of galaxies. We report no detections within the void, where ourcatalog is complete for systems with HI masses of 10^8 solar masses. Gas-rich,optically-dark galaxies do not seem to constitute an important void population,and therefore do not suffice at producing a viable solution to the voidphenomenon.

The Arecibo Legacy Fast ALFA Survey: V. HI Source Catalog of the Anti-Virgo Region at dec=27 degrees