CCD Photometry of the Globular Cluster M53. I. Color-Magnitude Data and Blue Straggler Stars
Astronomical Journal, 1998 The first large-format CCD color-magnitude diagram (CMD) in the B and V passbands is presented for the Galactic globular cluster M53 (NGC 5024). The observations consist of 40 pairs of B and V CCD frames with FWHM < 12 in a pattern covering a 12' × 13' region of M53. These frames were used to produce color-magnitude data for more than 20,000 stars from
Soo-Chang Rey
exaly +3 more sources
Light Element Abundances and Multiple Populations in M53 [PDF]
The Astronomical Journal, 2021 Abstract We present results from a study of 94 red giant stars in the globular cluster M53. We use low-resolution spectra to measure the strength of CN and CH features at ∼3800 and 4300 Å, respectively. The strengths of these features are used to classify stars into a CN-enhanced and CN-normal population and to measure C and N abundances
Jeffrey M. Gerber +2 more
openaire +4 more sources
Unraveling the multifaceted resilience of arsenic resistant bacterium Deinococcus indicus [PDF]
Frontiers in Microbiology, 2023 Arsenic (As) is a toxic heavy metal widely found in the environment that severely undermines the integrity of water resources. Bioremediation of toxic compounds is an appellative sustainable technology with a balanced cost-effective setup.
André G. Gouveia +10 more
doaj +2 more sources
M53. EMOTIONAL SELF-VOICE PROCESSING AND ITS RELATIONSHIP WITH HALLUCINATORY PRONENESS [PDF]
Schizophrenia Bulletin, 2020 Abstract Background Sensory brain areas typically reduce their activity when we speak, allowing us to differentiate our own from someone else’s speech. Similarly, the amplitude of the N100 component of the EEG event-related potential in response to own speech is smaller than for passive listening to ...
Xanthate Duggirala, Suvarnalata +5 more
openaire +2 more sources
Extratidal Stars and Chemical Abundance Properties of Two Metal-poor Globular Clusters M53 (NGC 5024) and NGC 5053 [PDF]
Astrophysical Journal, 2020 We search for extratidal stars around two metal-poor Galactic globular clusters, M53 and NGC 5053, using the near-infrared APOGEE spectra. Applying the t-distributed stochastic neighbor embedding (t-SNE) algorithm on the chemical abundances and radial ...
Dongwook Lim +2 more
exaly +2 more sources
Investigation of variable star candidates in the globular cluster NGC 5024 (M53) [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 We have performed a careful investigation of the 74 candidate variable stars presented by Safanova & Stalin (2011). For this purpose we used our data base of imaging and light curves from Arellano Ferro et al. (2011) and Arellano Ferro et al. (2012).
Bramich, D. M. +3 more
semanticscholar +5 more sources
The unusually large population of Blazhko variables in the globular cluster NGC 5024 (M53) [PDF]
Monthly Notices of the Royal Astronomical Society, 2011 ACCEPTED IN MNRAS 14 pages, 9 figures and 6 ...
Ferro, A. Arellano +4 more
semanticscholar +5 more sources
New Data on Period Changes of the RR Lyrae Stars in the Globular Cluster M53 [PDF]
International Astronomical Union Colloquium, 2000 AbstractWe present new data on the period changes of seven RRab stars in the globular cluster M53. The most interesting result of this work is the strong evidence for cyclic period changes for more than half of the studied RR Lyrae variables.
G. Kopacki
openaire +2 more sources
On the Changes of Periods of RR Lyrae Variables in the Globular Clusters M5, M53 and NGC 5053 [PDF]
Astrophysics and Space Science Library, 1973 The period of a variable star is very sensitive to extremely minor changes in luminosity, mass, radius, surface temperature, etc. of the star. With new theoretical calculations of the interior structure of stars in the late stages of evolution now available, the investigation of instabilities in the periods of the RR Lyrae variables in globular ...
B V Kukarkin
exaly +2 more sources
The Blue Straggler population in the globular cluster M53 (NGC5024): a combined HST, LBT, CFHT study [PDF]
, 2008 25 pages, 9 figures, accepted for publication on ...
Beccari, G. +26 more
openaire +4 more sources