The LVHIS database and
LVHIS Galaxy Atlas
are nearly complete. Many more galaxies and features (eg. catalogued
properties) will be added to the AladinLite API above.
SkyMapper optical images (UVGIRZ) can be explored via the
Southern Sky Viewer
and Dark Energy Survey (DES) images and models via the
Legacysurvey Viewer . The
CASDA Skymap allows for the overlay of ASKAP catalogs. Further great
survey science tools are
AladinLite , Chromoscope ,
and ESA Sky , which allows
for comparison of multi-wavelength surveys.
LVHIS - a step towards WALLABY
LVHIS is a significant step towards the ASKAP HI All-Sky Survey
(known as WALLABY ,
Koribalski
2012 ; Koribalski et al. 2020 ),
as it delivers similar spectral line sensitivity and resolution.
WALLABY is a large survey project (approx. two years; 16h per pointing)
exploring 3/4 of the sky out to a redshift of 0.25. Combined with a WSRT
Apertif HI observations of the northern sky DEC > +27 degr) we like
to achieve a homogenous all-sky HI survey.
Our aims
Our aim is to study the formation and evolution of galaxies in the
Local Universe. HI spectral line (21-cm) observations allow us to trace
the overall matter distribution in galaxies, measure their velocity
fields and deduce their gas dynamics and morphology. The gaseous envelopes
of galaxies typically extend far beyond their stellar disks. Locations of
star formation can usually be identified by high density HI clumps in the
outer disks. HI is also found between galaxies (e.g. in groups and clusters),
high-lighting their tidal interactions as well as ram pressure stripping.
ATCA observations
We have obtained full 12-h synthesis observations of the sample galaxies
with three ATCA configurations (EW352/367-m, 750-m, and 1.5-km). For
galaxies with very large HI envelopes we also obtained HI mosaics in
the H75 array, the most compact ATCA configuration. These data were then
used to make detailed maps of the HI distribution & HI velocity fields of
the Local Volume galaxies as well as their star formation properties on
all scales. Our data is complemented by deep AAT H-band images, as
well as BVRI-, Halpha-, GALEX uv- and Spitzer mid-infrared images.
Other HI observations
For LV galaxies with DEC > +20 degrees with used the Westerbork Radio
Synthesis Telescope, see the
WSRT-LVHIS project. Similar projects are also under way at the VLA
and the GMRT, listed below.
Related projects
FIGGS: PI = Ayesha Begum,
THINGS : PI = Fabian Walter;
Little THINGS :
PI = Deidre Hunter;
VLA-ANGST :
PI = Jürgen Ott),
WHISP ,
WSRT-LVHIS : PI = Eva Manthey.
Complementary multi-wavelength data are available from the following
projects: ANGST, SINGG-SUNGG, GALEX, Spitzer LVL, 11HUGS, etc.
Galaxy Symposium
An international conference on
"Galaxies in the
Local Volume" was held in Sydney, 8-13 July 2007. The resulting
Book ,
editors B.S. Koribalski and H. Jerjen, can be purchased.