Search Results - "Arellano Ferro, A."

On the membership of variable stars in Galactic globular clusters: the Oosterhoff gap by Prudil, Z, Arellano Ferro, A

“…ABSTRACT We have performed a critical evaluation of the membership status of all variable stars in globular clusters recorded in the Catalogue of Variable…”
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The variable stars in the field of NGC 6139: a critical approach to their reddening and membership by Yepez, M A, Arellano Ferro, A, Bustos Fierro, I, Luna, A

“…ABSTRACT We present a CCD VI time-series analysis of the globular cluster NGC 6139 and its variable star population. Using the astrometric data available in…”
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The variable stars in the field of the bulge cluster NGC 6558 by Ferro, A Arellano, Guillen, L J Zerpa, Yepez, M A, Fierro, I H Bustos, Prudil, Z, Parra, C E Pérez

“…ABSTRACT We made a survey of the variable stars in a 13.2 × 13.2 arcmin$^{2}$ centred on the field of the Galactic bulge cluster NGC 6558. A total of 78…”
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CCD time-series photometry of the globular cluster NGC 6981: variable star census and physical parameter estimates by Bramich, D. M., Figuera Jaimes, R., Giridhar, Sunetra, Arellano Ferro, A.

“…We present the results from 10 nights of observations of the globular cluster NGC 6981 (M72) in the V, R and I Johnson wavebands. We employed the technique of…”
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Detailed analysis of the variable star population in the globular cluster NGC 7006 by Arellano Ferro, A, Rojas Galindo, F C, Bustos Fierro, I H, Muneer, S, Yepez, M A, Giridhar, Sunetra

“…ABSTRACT A 5-yr CCD photometric VI time series of NGC 7006 is employed to perform a detailed analysis of the known population of variable stars. In the…”
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A new overview of secular period changes of RR Lyrae stars in M5 by Ferro, A Arellano, Ahumada, J A, Kains, N, Luna, A

“…Secular period variations, ... = P..., in 76 RR Lyrae stars in the globular cluster M5 are analysed using our most recent CCD V photometry and the historical…”
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Difference image analysis: extension to a spatially varying photometric scale factor and other considerations by Bramich, D. M., Horne, Keith, Albrow, M. D., Tsapras, Y., Snodgrass, C., Street, R. A., Hundertmark, M., Kains, Noé, Arellano, Ferro A., Figuera, Jaimes R., Giridhar, Sunetra

“…We present a general framework for matching the point-spread function (PSF), photometric scaling and sky background between two images, a subject which is…”
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Revisiting the variable star population in NGC 6229 and the structure of the horizontal branch by Arellano Ferro, A., Mancera Piña, P. E., Bramich, D. M., Giridhar, Sunetra, Ahumada, J. A., Kains, N., Kuppuswamy, K.

“…We report an analysis of new V and I CCD time series photometry of the distant globular cluster NGC 6229. The principal aims were to explore the field of the…”
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RR Lyrae stars and the horizontal branch of NGC 5904 (M5) by Arellano Ferro, A., Luna, A., Bramich, D. M., Giridhar, Sunetra, Ahumada, J. A., Muneer, S.

“…We report the distance and [Fe/H] value for the globular cluster NGC 5904 (M5) derived from the Fourier decomposition of the light curves of selected RRab and…”
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Exploring the variable stars in the globular cluster NGC 5024 (M53): new RR Lyrae and SX Phoenicis stars by Arellano Ferro, A., Figuera Jaimes, R., Giridhar, Sunetra, Bramich, D. M., Hernández Santisteban, J. V., Kuppuswamy, K.

“…We report CCD V and I time series photometry of the globular cluster NGC 5024 (M53). The technique of difference image analysis has been used which enables…”
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CCD time-series photometry of the globular cluster NGC 5053: RR Lyrae, Blue Stragglers and SX Phoenicis stars revisited by Ferro, A. Arellano, Giridhar, Sunetra, Bramich, D. M.

“…We report the results of CCD V, r and I time-series photometry of the globular cluster NGC 5053. New times of maximum light are given for the eight known RR…”
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A detailed census of variable stars in the globular cluster NGC 6333 (M9) from CCD differential photometry by Arellano Ferro, A., Bramich, D. M., Figuera Jaimes, R., Giridhar, Sunetra, Kains, N., Kuppuswamy, K., Jørgensen, U. G., Alsubai, K. A., Andersen, J. M., Bozza, V., Browne, P., Calchi Novati, S., Damerdji, Y., Diehl, C., Dominik, M., Dreizler, S., Elyiv, A., Giannini, E., Harpsøe, K., Hessman, F. V., Hinse, T. C., Hundertmark, M., Juncher, D., Kerins, E., Korhonen, H., Liebig, C., Mancini, L., Mathiasen, M., Penny, M. T., Rabus, M., Rahvar, S., Ricci, D., Scarpetta, G., Skottfelt, J., Snodgrass, C., Southworth, J., Surdej, J., Tregloan-Reed, J., Vilela, C., Wertz, O.

“…We report CCD V and I time series photometry of the globular cluster NGC 6333 (M9). The technique of difference image analysis has been used, which enables…”
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Chemical composition of A–F type post-AGB candidates by Giridhar, Sunetra, Molina, R., Ferro, A. Arellano, Selvakumar, G.

“…An abundance analysis has been conducted for a sample of nine post-asymptotic giant branch (AGB) candidate stars; eight of them have not been explored before…”
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CCD VI time-series of the extremely metal-poor globular cluster M92: revisiting its variable star population by Yepez, M A, Arellano Ferro, A, Deras, D

“…ABSTRACT We present an analysis of VI CCD time-series photometry of the Oo II type globular cluster M92. The variable star population of the cluster is studied…”
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CCD photometry of the globular cluster M2: RR Lyrae physical parameters and new variables by Lázaro, C., Ferro, A. Arellano, Arévalo, M. J., Bramich, D. M., Giridhar, S., Poretti, E.

“…We report the results of CCD V and R photometry of the RR Lyrae stars in M2. The periodicities of most variables are revised and new ephemerides are…”
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CCD photometry of the globular cluster NGC 5466. RR Lyrae light-curve decomposition and the distance scale by Arellano Ferro, A., Rojas López, V., Giridhar, Sunetra, Bramich, D. M.

“…We report the results of CCD V and r photometry of the globular cluster NGC 5466. The difference image analysis technique adopted in this work has resulted in…”
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A new study of the variable star population in the Hercules globular cluster (M13; NGC 6205) by Deras, D, Arellano Ferro, A, Lázaro, C, Bustos Fierro, I H, Calderón, J H, Muneer, S, Giridhar, Sunetra

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A new photometric study of M14 (NGC 6402): an interpretation of the horizontal branch and beyond by Yepez, M A, Arellano Ferro, A, Deras, D, Bustos Fierro, I, Muneer, S, Schröder, K-P

“…ABSTRACT We present a CCD VI photometric study of the globular cluster M14. Particular attention is given to the variable stars. This allowed new…”
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Variable stars in the field of the Galactic bulge globular cluster NGC 6522 by Arellano Ferro, A., Prudil, Z., Yepez, M. A., Bustos Fierro, I., Luna, A.

“…We present a comprehensive analysis of the variable stars projected on the field of the Galactic bulge globular cluster NGC 6522, offering valuable insights…”
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The globular cluster M10: reassessment of stellar membership, distance, and age using its variable and HB stars by Arellano Ferro, A, Yepez, M A, Muneer, S, Bustos Fierro, I H, Schröder, K P, Giridhar, Sunetra, Calderón, J H

“…ABSTRACT Time-series VI CCD photometry of the globular cluster M10 (NGC 6254) is employed to perform a detailed identification, inspection of their light…”
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