Crimean astrophysical observatory
Crimean astronomical virtual observatory

Spectral Digital Archives of Crimean astrophysical observatory

The CrAO has a long history of spectral observations. The first observations of astronomical objects in the Crimea (solar prominences with a spectroscope) were started in the southern branch of the Pulkovo Astronomical Observatory near Simeiz on the mount Koshka (“The Cat”) in the first quarter of the XX century (Polosukhina et al., 2008). Later on the photographic spectral observations with the objective prism at the astrograph with the 117- mm objective "Unar" (Kurbasova, 2007) and since 1926 on a quartz spectrograph for the Newtonian focus and large prism spectrograph with a thermostat and two different cameras at the 40-inch reflector "Goward Grabb" firm (Kryuchkov et al., 2009) were followed. For example, a large program of observations to determine the radial velocities of stars was conducted (Shajn, Albitzky, 1932) with this telescope. Since 1950th the spectroscopic observations with 400-mm astrograph, 1200-mm and 2600- mm reflectors were carried out in the new Crimean Astrophysical Observatory, which was built near Bakhchisarai in the Crimean Mountains. More information see (Gorbunov, Shlyapnikov, 2013).

Brief description of spectra collections
1. Objective prism spectroscopy

“Spectroscopy with Objective Prism” (SwOP) collection of Crimean astrophysical observatory contains about 1000 spectral plates obtained with "Unar" (117-mm), "Dogmar" (167-mm), and 400-mm astrographs in 1929 – 1965 years. The largest number of negatives was obtained for studying the stellar and dust components of the Galaxy and for revealing the stars, which excite intergalactic medium. The Shajn’s areas collection contains more 500 spectral plates obtained on 400-mm astrograph in 1950 - 1965 years with a goal to investigate a structure of the Milky Way. Figure 1 illustrates the sky coverage of the plates from SwOP collection.

SwOP collection

Figure 1: The SwOP collection presented in the interactive sky atlas Aladin
More information about SwOP collection (ru).


2. 40-inch reflector "Goward Grabb" collection

About 3,200 spectra were obtained with 40-inch telescope (Shain, 1926) at the Simeiz observatory in 1929-1941 (distribution of the observed objects on the sky is given in Fig. 2).

40-inch collection

Figure 2: The sky of 40-inch reflector are presented in the interactive sky atlas Aladin
More information about 40-inch reflector collection (ru).


3. The 1200-mm reflector of collection spectra

More than 5,500 direct spectra and 1,000 spectra with FKT-1A image convertor were obtained using 1200-mm telescope (Kopylov, 1954) in 1953-1990 (distribution of the observed objects on the sky is given in Fig. 3).

48-inch collection

Figure 3: The sky of 48-inch reflector are presented in the interactive sky atlas Aladin
More information about 48-inch reflector collection (ru).


4. Collection of the ZTSh

More than 3,000 spectra of different objects and 3,000 spectra with image convertor for active galactic nuclei and the comparison stars were obtained using the 2600-mm telescope ZTSh (Ionnisiani et al., 1976) in 1964-1990.

ZTSh collection

Figure 4: The sky of ZTSh telescope are presented in the interactive sky atlas Aladin
More information about ZTSh collection.


Useful poster at pdf format about archives of spectral observations at CrAO (ru).
Reference for poster (pdf).

References
Gorbunov M., Shlyapnikov A.: 2013, OAP, 26, 229. SAO/NASA ADS
Ionnisiani B.K. et al.: 1976, IzKry, 55, 208.
Kopylov I.M.: 1954, IzKry, 11, 44.
Kryuchkov S.V. et al.: 2009, IzKry, 104/6, 188.CrVAO IzKry site (ru)
Kurbasova G.S.: 2007, IzKry, 103/2, 90. CrAO IzKry site (ru)
Polusukhina et al.: 2008, IzKry, 104/5, 27.CrVAO IzKry site (ru)
Shain G.: 1926, MiPul, 10, 450. SAO/NASA ADS
Shajn G., Albitzky V.: 1932, MNRAS, 92, 771. SAO/NASA ADS