Browsing Articles by Subject "Cepheids"

Now showing items 21-26 of 26

A search for OB associations near Southern long-period Cepheids. IV. XY Carinae, GT Carinae, WZ Sagittarii, and SW Velorum

Turner, David Gerald, 1945-; Danks, T. A.; Forbes, Douglas (American Astronomical Society, 1993-03)

We report UBV photometry for fields surrounding four long-period Cepheids in the Southern Milky Way. No potential early-type companions are detected around XY Car, which appears to be relatively isolated. However, an ...
A search for OB associations near southern long-period Cepheids. V. AQ Puppis and V620 Puppis

Turner, David Gerald, 1945-; van den Bergh, S.; Younger, P. F.; Majaess, Daniel J.; Pedreros, M. H.; Berdnikov, L. N. (IOP Publishing Limited, 2012-12)

A photometric UBV survey is presented for 610 stars in a region surrounding the Cepheid AQ Puppis and centered southwest of the variable, based upon photoelectric measures for 14 stars and calibrated iris photometry of ...
V473 Lyr, a modulated, period-doubled Cepheid, and U TrA, a double-mode Cepheid, observed by MOST

Molnar, L.; Derekas, A.; Szabo, R.; Matthews, J. M.; Cameron, C.; Moffat, A. F. J.; Richardson, N. D.; Csak, B.; Dozsa, A.; Reed, P.; Szabados, L.; Heathcote, B.; Bohlsen, T.; Cacella, P.; Luckas, P.; Sodor, A.; Skarka, M.; Szabo, Gy. M.; Plachy, E.; Kovacs, J.; Evans, N. R.; Kolenberg, K.; Collins, K. A.; Pepper, J.; Stassun, K. G.; Rodriguez, J. E.; Siverd, R. J.; Henden, A.; Mankiewicz, L.; Zarnecki, A. F.; Cwiek, A.; Sokolowski, M.; Pal, A.; Guenther, David B.; Kuschnig, R.; Rowe, J.; Rucinski, S. M.; Sasselov, D.; Weiss, W. W. (Oxford University Press, 2017-05)

Space-based photometric measurements first revealed low-amplitude irregularities in the pulsations of Cepheid stars, but their origins and how commonly they occur remain uncertain. To investigate this phenomenon, we present ...
The VMC survey – V. First results for classical Cepheids

Ripepi, V.; Moretti, M. I.; Marconi, M.; Clementini, G.; Cioni, M.-R. L.; Marquette, J. B.; Girardi, L.; Rubele, S.; Groenewegen, M. A. T.; de Grijs, R.; Gibson, Brad K. (Oxford University Press, 2012-08)

The VISTA Magellanic Cloud (VMC; PI: M.-R. L. Cioni) survey is collecting deep K_s-band time series photometry of the pulsating variable stars hosted by the system formed by the two Magellanic Clouds (MCs) and ...
The VVV Survey reveals classical Cepheids tracing a young and thin stellar disk across the Galaxy's bulge

Dekany, I.; Minniti, D.; Majaess, Daniel J.; Zoccali, M.; Hajdu, G.; Alonso-Garcia, J.; Catelan, M.; Gieren, W.; Borissova, J. (American Astronomical Society, 2015-10-20)

Solid insight into the physics of the inner Milky Way is key to understanding our Galaxy’s evolution, but extreme dust obscuration has historically hindered efforts to map the area along the Galactic mid-plane. New ...
The young open cluster Stock 16: an example of star formation in an elephant trunk?

Turner, David Gerald, 1945- (American Astronomical Society, 1985-05-01)

UBV photometry is presented for 33 stars in the young open cluster Stock 16 lying in the H II region RCW 75, and these observations are used to obtain new values for the reddening (E[subscript B-V] = 0.49 [plus or minus] ...