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Browsing by Author "Padalia, T. D."

Browsing by Author "Padalia, T. D."

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  • Astrometric positions of Comet Wilson (19861) 
    Joshi, S. C.; Srivastava, J. B.; Padalia, T. D.; Kandpal, C. D. (1988)
    Positions of comet Wilson have been measured from the photographic plates taken at the Cassegrain focus of the 104-cm reflector of Uttar Pradesh State Observatory, Naini Tal.
  • Gravitational radiation and spiralling time of close binary system 
    Padalia, T. D. (1987)
    Power-output be gravitational radiation (Pв)and spiral time (τₒ) for individual systems of sixteen eclipsing binary stars have been evaluated, and a relation between Pв and τₒ obtained.
  • Gravitational radiation and spiralling time of close binary systems (II) 
    Padalia, T. D. (1988)
    Power-output by gravitational radiation (Pв) and spiralling time (τₒ) for individual systems of twelve early (B) type binary systems have been evaluated. A new relation between Pв and τₒ obtained. It is found that most of ...
  • Gravitational radiation and spiralling time of close binary systems (III) 
    Padalia, T. D. (1990)
    Twenty-seven typical binary systems have been investigated to study their power-output by gravitational radiation (Pв) and spiralling time (τₒ) relation. It was found that these binary systems form two distinct groups. New ...
  • Gravitational radiation and spiralling time of close binary systems (IV) 
    Padalia, T. D. (1991)
    Binary systems with their primary and secondary component masses less than 2M☉ have been investigated to evaluate the rate of emission of gravitational energy (Pв) and spiralling time (τₒ) for them. In all twenty-two ...
  • Gravitational radiation and spiralling time of close binary systems (V) 
    Padalia, T. D. (1992)
    Forty-six binary systems with their primary component masses between 2 M☉ and M☉ have been considered for gravitational radiation study. Power output by gravitational radiation (Pв) and spiral τ0 for all individual systems ...
  • HD 200925, A pulsating variable 
    Gupta, S. K.; Padalia, T. D. (1980)
    The star HD 200925 (BD +50d3259) was observed by Bedolla and Pena (1979) on four nights during 25th to 28th September 1978 in V filter. They reported this star as a variable with a tentative period of 0.238d, and no ...
  • HD91948: a new probable Be star 
    Goraya, P. S.; Padalia, T. D. (1984)
    Gorga (1971) investigated the binary nature of the star HD 91948 (=BD+60d 1274 = SAO 15243; F8V). He found it to be a spectroscopic binary with an orbital period of 2.7700266d. The first photoelectric (UBV) observations ...
  • Intrinsic light variations in the eclipsing binary RW Ceti 
    Padalia, T. D. (1987)
    Intrinsic light variations in B and V filters have been found on the three observed light curves of RW Ceti.
  • The nature of the eclipses of VZ hydrae 
    Padalia, T. D. (1986)
    Further study of the observed U, B, V light curves of VZ Hya reveals that the primary eclipse is an occultation.
  • A new Cepheid variable, HD 200925 
    Padalia, T. D.; Gupta, S. K. (1982)
    Photoelectric observations of the star HD 200925 in the standard UBV system have been secured and analyzed. The period is determined to be 0. ͩ 267394. From the period and shape of the light and colur curves, the star HD ...
  • On the magnitude variations of comet Swift-Tuttle (1992t) 
    Padalia, T. D.; Gupta, S. K.; Chaubey, U. S.; Srivastava, R. K. (1995)
    The standard UBV magnitudes of the head of comet Swift-Tuttle (1992t) during four nights in December 1992, are estimated using our photoelectric observations. The overall brightness variations in the comet are discussed.
  • On the period of HD 200925 
    Gupta, S. K.; Padalia, T. D. (1982)
    Bedolla and Pena (1979) presented photoelectric observations of HD 200925 in V filter and estimated the period of its variability to be 0.238d with an amplitude of 0.35m. Later in 1979 this star was observed spectroscopically ...
  • Photoelctric photometry of the eclipsing binary EE Aqr 
    Padalia, T. D. (1979)
    The system EE Aqr has been observed in UBV colours. A consistent set of orbital elements and a slightly improved period of 0.ᵈ5089954 have been obtained. The eclipse is partial and varability is of β Lyrae-type. The colour ...
  • The photoelectric elements of AS Camelopardalis 
    Padalia, T. D.; Srivastava, R. K. (1975)
    Improved geometrical elements of the system AS Cam have been obtained and the colour of the system has been discussed. The absolute dimensions have also been obtained on the basis of the spectroscopic elements given by ...
  • Photoelectric elements of the eclipsing binary XY Ceti 
    Srivastava, R. K.; Padalia, T. D. (1975)
    The absolute elements of the system XY Ceti have been obtained on the basis of the spectroscopic elements given by Popper (1971) and the photoelectric elements derived by us. The colours of the components have been obtained. ...
  • Photoelectric photometry of Comet Bradfield (1987s) 
    Padalia, T. D. (1989)
    UBV observations and magnitude of head of Comet Bradfield (1987s) during six nights in December 1987 are given. Magnitude and intensity variations and colour indices of three circular zones from the centre of the cometary ...
  • Photoelectric photometry of the spectroscopic binary HD 91948 
    Padalia, T. D. (1980)
    The star HD 91948 (BD+60d1274) has been found to be a spectroscopic binary by Gorga (1971) with an orbital period of 2.7700266d. No photoelectric work on this star is available in the literature. The purpose of our ...
  • Photoelectric study of AW UMa 
    Sridharan, R. K.; Padalia, T. D. (1986)
    UBV photoelectric photometry of the eclipsing binary system AW UMa has been presented. A slightly improved period of 0 ͩ.4387304 has been given. The colour of the system has been discussed. Eccentricity is present in the ...
  • Photographic observations of comet Halley (1982i) 
    Joshi, S. C.; Srivastava, J. B.; Kandpal, C. D.; Padalia, T. D.; Sanwal, B. B.; Chaubey, U. S.; Singh, M. (1987)
    Positions of Comet Halley have been measured from the photographic plates taken at Cassegrain focus the 104-cm telescope of Uttar Pradesh State Observatory.

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