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\IBVShead{5613}{11 March 2005}

\IBVStitle{New GCVS Data for Selected Volume III Variables}

\IBVSauth{Antipin, S. V.$^{1, 2}$; Pastukhova, E. N.$^2$; Samus, N. N.$^{2, 1}$}

\IBVSinst{Sternberg
Astronomical Institute, 13, University Ave., Moscow 119992,
Russia}
\IBVSinst{Institute of Astronomy, Russian Academy of Sciences,
48, Pyatnitskaya Str., Moscow 119017, Russia}


\IBVSkey{GCVS}

\IBVSabs{For 49 GCVS stars in seven Volume III constellations,}
\IBVSabs{we present revised information to be incorporated in the}
\IBVSabs{GCVS on-line version. This information is based}
\IBVSabs{on our analysis of the ASAS and ROTSE1/NSVS observations.}


\begintext

\vspace*{-1cm}

Finishing our work on revision of positional information for all
stars of the GCVS (Samus et al., 2002, 2003), we identified
variables in GCVS Volume III constellations with positional
catalogs. Having accurate coordinates for these stars, we were
able to retrieve their observations from the ASAS-3 (Pojmanski,
2002) and ROTSE-I/NSVS (Wo\'zniak et al., 2004) data bases, often
the only sources of data making it possible to study sufficiently
bright variables. These observations were analyzed using the
period-search software developed by Dr.~V.P.~Goranskij for
Windows environment, in a search for information significantly
appending or improving that in the GCVS and especially for new
periods. For the present paper, we retained only the stars not
included into the ASAS-3 web variable-star catalog or into the
ROTSE1 catalog (Akerlof {\it et al.}, 2000), or stars present in
these catalogs but with our results significantly different from
those presented there. In Table~1, we collect the relevant data
for 49 stars in seven constellations. For a half of all cases,
even the variability types were significantly modified  or
completely changed. The epochs in Table~1 are minima for
eclipsing stars and maxima for other variables. Though both
ASAS-3 and ROTSE-I/NSVS data were used to derive the tabulated
variability types and light elements, the magnitudes in maximum
and minimum, with the labeled exceptional case of old
photographic magnitudes (HK TrA, for which the ASAS-3 data do not
reveal its really large variability amplitude), are $V$-band
magnitudes from ASAS-3. Figure~1 presents sample light curves,
plotted using ASAS-3 $V$-band observations, for some of the
variables.

Of special interest are several red variables in Triangulum
Australe, earlier erroneously announced by Hoffleit (1931) as
RR~Lyrae stars; some of them even had absolutely wrong periods
published. Additional cases of similar misclassifications by
Hoffleit (1931) can be found among stars included into the ASAS-3
variable-star web catalog.

The information presented in this paper will be incorporated in
the GCVS on-line version in April, 2005. By the same time,
accurate coordinates will be presented for all GCVS Volume~III
stars.

\medskip

We wish to express our sincere thanks to Dr.~V.P.~Goranskij for
providing us with his excellent period-search software. Thanks
are due to Dr.~M.L.~Hazen for sending us many unpublished finding
charts for Harvard variables. The work of the GCVS team is
supported, in part, by grants from the Russian Foundation for
Basic Research, The Federal Scientific and Technological Program
``Astronomy'', the program ``Non-Stationary Processes in
Astronomy'' of the Presidium of Russian Academy of Sciences, and
the program of support for leading scientific schools of Russia
(grant NSh-389-2003-2).

\vfill \eject {\small
\begin{center}
{\normalsize Table 1. New data on GCVS Volume III variable stars} \vskip2mm
\begin{tabular}{lcclr@{}llr@{}ll}
\hline Star & \multicolumn{2}{c}{RA (J2000) Dec} & Type &
\multicolumn{2}{c}{$V$} & Epoch, JD 24... & \multicolumn{2}{c}{P, days}&Remark \\
\hline
\multicolumn{10}{c}{SAGITTARIUS}\\
V2012& 18 37 12.4& --26 10 22 & M    & 12.7 &--(14.0 & 52490 & 490\\
V2142& 19 22 36.7& --18 29 12 & SRA  & 11.7 &--(12.6 & 52086 & 243\\
V2168& 19 42 37.5& --38 39 56 & EA   & 13.0 &--14.6  & 52439.740 & 2&.06888\\
V2187& 19 47 24.0& --45 03 55 & RRAB & 13.3 &--14.2  & 52192.527 & 0&.59310\\
V2195& 19 48 48.7& --42 40 55 & SRA  & 13.2 &--(14.6 & 52071 & 136\\
V2201& 19 52 50.3& --43 01 42 & EA   & 11.3 &--12.8  & 52039.794 & 4&.8151\\
V2219& 19 59 58.4& --39 22 55 & RRAB & 13.5 &--14.7  & 52743.871 & 0&.47738\\
V2246& 20 12 30.5& --37 44 06 & RRAB & 13.2 &--14.2  & 52721.853 & 0&.60654\\
V2248& 20 13 13.5& --37 59 42 & EW   & 13.5 &--14.5  & 52470.639 & 0&.31480 & DSCT in ASAS-3\\
V3812& 18 23 41.4& --23 29 15 & M    & 12.7 &--(13.8 & 52527 & 240\\
V3813& 18 24 10.2& --27 19 44 & SRA  & 11.8 &--13.1  & 52758 & 246:\\
V3866& 18 42 03.2& --19 46 36 & EA   & 12.2 &--13.0  & 52184.519 & 3&.08201\\
V3958& 19 29 50.0& --44 49 14 & SRA  & 10.8 &--12.4  & 52902 & 111\\
\multicolumn{10}{c}{TRIANGULUM AUSTRALE}\\
TU  &  15 50 07.2& --61 16 38 & M    & 12.7 &--(14.2 & 52732 &  376&:\\
VV  &  15 56 07.2& --60 25 18 & SRB  & 12.0 &--13.7 &       &  230&:\\
AC  &  16 07 55.9& --64 25 05 & SR   & 12.5 &--13.8 &       &  165&:\\
AH  &  16 10 59.8& --62 31 03 & EA   & 13.1 &--14.0 & 52052.633 &1&.399562\\
AX  &  16 15 48.2& --61 58 54 & M    & 12.4 &--(14.4& 52527 &  312\\
BQ  &  16 21 24.9& --64 42 17 & M    & 12.7 &--(14.6& 52720 &  139&.4\\
BX  &  16 22 03.8& --60 23 04 & SRA  & 12.8 &--14.8 & 52698 &  165\\
CN  &  16 28 29.6& --61 55 51 & CWA  & 12.1 &--12.6 & 53074.9& 12 &.232\\
HK  &  15 42 30.8& --65 38 47 & M    & 11.0 &--(18p & 52714  & 263\\
HN  &  16 36 09.8& --65 11 12 & M    & 11.8 &--(15.0& 52638: & 382\\
HU  &  16 23 15.0& --61 45 26 & SRA: & 11.6 &--12.9:& 53115  & 369\\
IQ  &  15 36 59.1& --64 53 49 & EA   & 10.8 &--11.4 & 51963.763&3&.1942&$D=0\fper12$\\
IV  &  16 43 14.9& --62 02 55 & M:   & 12.8 &--(13.9& 52198  & 350:\\
KV  &  15 45 32.5& --66 50 22 & M    & 11.0 &--(14.0& 52564  & 352\\
\multicolumn{10}{c}{TUCANA}\\
X   &  22 49 48.8&--64 59 31  & RRAB & 13.4 &--14.2 & 52032.88& 0&.57307\\
ZZ  &  22 16 54.0&--63 48 15  & M    & 10.6 &--(14.9& 52055   & 304\\
CC  &  01 02 42.9&--65 27 22  & SRS  &6.22 &--\,\,6.37&53048  &  20.5\\
\multicolumn{10}{c}{VELA}\\
TX  &  09 13 57.9& --54 50 12 & SRD  & 11.2 &--11.5 & 52932  & 55&.5\\
DV  &  09 49 21.1& --45 29 40 & SRB  & 11.9 &--12.7 &        & 147\\
HO  &  10 24 56.1& --51 14 59 & M    & 11.4 &--(14.0& 52986  & 299\\
\multicolumn{10}{c}{VIRGO}\\
TU  &  13 56 53.2& --12 33 20 & RRAB & 13.6 &--14.6 & 52388.66& 0&.65655\\
AP  &  14 28 30.3&  +07 17 37 & M    & 11.0 &--(14.7& 52795   & 283\\
CQ  &  14 21 25.2&  +06 26 33 & SRA  &  8.7 &--\,\,9.5&53071  &  74\\
NX  &  13 35 25.8& --22 23 17 & M    & 11.5 &--(15.1&  52820  & 324\\
OO  &  15 01 31.5&  +02 26 20 & SR   & 12.0 &--12.7 &  53133  & 109\\
\multicolumn{10}{c}{VOLANS}\\
RV  &  08 32 52.6& --70 04 24 & RRAB & 13.0 &--13.9 &53132.599& 0&.64991\\
RW  &  08 36 02.1& --65 05 17 & EA   & 13.4 &--15.0 &52140.927& 2&.8624\\
SW  &  08 50 10.5& --66 23 12 & RRAB & 12.1 &--13.1 &53003.783& 0&.60111\\
TT  &  08 58 00.5& --65 34 05 & M    & 12.3 &--(14.5&52194    & 168\\
TZ  &  08 12 54.3& --72 30 08 & M    & 12.2 &--(15.0&52863    & 324\\
UU  &  08 16 00.2& --68 28 21 & SRB  &  8.5 &--\,\,9.9&       & 134\\
\multicolumn{10}{c}{VULPECULA}\\
XX  &  19 21 01.2&+24 59 32   & M    & 13.2 &--(14.8&51330    & 300:\\
BB  &  20 32 19.5&+27 39 44   & EA/RS& 12.0 &--12.7 &51345.913& 0&.93892 &1RXS source\\
DZ  &  21 10 09.0&+25 56 23   & EA   & 11.8 &--12.5 &51353.847& 1&.5941\\
EL  &  20 35 42.4&+25 29 12   & SRA  & 12.5 &--13.8 &51383 & 230\\
IM  &  20 43 06.0&+22 28 55   & EW   & 11.5 &--12.0 &51442.693 & 0&.45428\\
\hline
\end{tabular}
\end{center}
}

\vfill 

\IBVSfig{18cm}{5613-f1.eps}{The sample light curves for six GCVS Volume~III variables.}
\IBVSfigKey{5613-f1.eps}{V2201 Sgr ; V3958 Sgr ; IQ TrA ; HO Vel ; NX Vir ; RV Vol}{light curve}
\newpage

\references

Akerlof, C., Amrose, S., Balsano, R. et al., 2000, {\it
Astron.~J.}, {\bf 119}, 1901

Hoffleit, D., 1931, {\it Harvard Obs. Bull.}, No.~884

Pojmanski, G., 2002, {\it Acta Astronomica}, {\bf 52}, 397

Samus, N.N., Goranskii, V.P., Durlevich, O.V. et al., 2002,
{\it Astronomy Letters}, {\bf 28}, 174

Samus, N.N., Goranskii, V.P., Durlevich, O.V. et al., 2003,
{\it Astronomy Letters}, {\bf 29}, 468

Wo\'zniak, P.R., Westrand, W.T., Akerlof, C.W. et al.,
2004,  {\it Astron.~J.}, {\bf 127}, 2436


\endreferences


\end{document}
