The Period Changes of the Cepheid RT Aurigae

Observations of the light curve for the 3.7-day Cepheid RT Aur both before and since 1980 indicate that the variable is undergoing an overall period increase, amounting to +0.082 +-0.012 s/yr, rather than a period decrease, as implied by all observations prior to 1980. Superposed on the star's O-C variations is a sinusoidal trend that cannot be attributed to random fluctuations in pulsation period. Rather, it appears to arise from light travel time effects in a binary system. The derived orbital period for the system is P = 26,429 +-89 days (72.36 +-0.24 years). The inferred orbital parameters from the O-C residuals differ from those indicated by existing radial velocity data. The latter imply the most reasonable results, namely a1 sin i = 9.09 (+-1.81) x 10^8 km and a minimum secondary mass of M2 = 1.15 +-0.25 Msun. Continued monitoring of the brightness and radial velocity changes in the Cepheid are necessary to confirm the long-term trend and to provide data for a proper spectroscopic solution to the orbit.Comment: Accepted for publication in PASP (November 2007

Provisional ephemerides of ET Normae and 14 new variable stars in or near the constellations Canis Major and Norma

Richman Brothers sought and was granted a state court injunction against organizational picketing conducted by the union. The complaint alleged acts which were unfair labor practices under section 8 (b) (2) of the amended National Labor Relations Act. The union, after failing to obtain removal of this action, unsuccessfully applied for a federal district court injunction against the state court proceedings. On appeal, held, affirmed. Section 2283 of the Judicial Code prevents a federal court injunction of a state court proceeding, despite the fact that the activities involved are within the exclusive jurisdiction of the National Labor Relations Board. Amalgamated Clothing Workers of America v. Richman Brothers Co., 348 U.S. 511, 75 S.Ct. 452 (1955)

Provisional ephemerides of ET Normae and 14 new variable stars in or near the constellations Canis Major and Norma

Wetensch. publicati

Sar1, a novel regulator of ER-mitochondrial contact sites

10.1371/journal.pone.0154280PLoS ONE114e015428