Astron. Astrophys. Suppl. Ser. 135, 221-226

A list of nearby dwarf galaxies towards the Local Void in Hercules-Aquila

V.E. Karachentseva ^1,2 - I.D. Karachentsev ^1,3 - G.M. Richter ⁴

1 - Visiting astronomer, Astrophysikalisches Institut Potsdam, An der Sternwarte 16, D-14482 Potsdam, Germany
2 - Astronomical Observatory of Kiev University, Observatorna 3, 254053, Kiev, Ukraine
3 - Special Astrophysical Observatory, Russian Academy of Sciences, N. Arkhyz, KChR, 357147, Russia
4 - Astrophysicalisches Institut Potsdam, an der Sternwarte 16, D-14482 Potsdam, Germany

Received July 6; accepted September 21, 1998

Abstract:

Based on film copies of the POSS-II we inspected a wide area of $\sim6000\ifmmode\hbox{\rlap{$\sqcap$}$\sqcup$}\else{\unskip\nobreak\hfil \penal... ...ap$}$\sqcup$} \parfillskip=0pt\finalhyphendemerits=0\endgraf}\fi\hbox{$^\circ$}$ in the direction of the nearest cosmic void: {RA = 18$^{\rm h}$38$^{\rm m}$, $D = +18\hbox{$^\circ$}$,V₀< 1500 km s^-1}. As a result we present a list of 78 nearby dwarf galaxy candidates which have angular diameters and a mean surface brightness mag/$\ifmmode\hbox{\rlap{$\sqcap$}$\sqcup$}\else{\unskip\nobreak\hfil \penalty50\hsk... ...up$} \parfillskip=0pt\finalhyphendemerits=0\endgraf}\fi\hbox{$^{\prime\prime}$}$. Of them 22 are in the direction of the Local Void region. To measure their redshifts, a HI survey of these objects is undertaken on the 100 m Effelsberg telescope.

Key words: galaxies: general -- galaxies: dwarf