| Name: | Janvi Agarwal |
| Affiliation: | ARIES |
| Conference ID : | ASI2024_276 |
| Title : | Characterizing the Variability of AD CMI: A Comprehensive Study of a Cepheid Variable Star. |
| Authors : | Author :-
1. Janvi Manoj Agarwal
Co- Authors:-
2. Jitendra Joshi
3. Raka Dabhade |
| Authors Affiliation: | 1. Janvi Agarwal ( Aryabhatt Research Institute of Observational Science (ARIES) ,Nainital-263002, India)
2. Jitendra Joshi (Inter-University Centre for Astronomy and Astrophysics(IUCAA),Pune-411007,India)
3. Raka Dabhade (Fergusson College, Pune-411004,India) |
| Mode of Presentation: | Poster |
| Abstract Category : | Stars, Interstellar Medium, and Astrochemistry in Milky Way |
| Abstract : | Astronomers have uncovered a captivating facet among the myriad celestial bodies, known as Variable Stars. These mysterious entities undergo changes in their luminosity over time, offering astronomers a unique opportunity to study the complexities of stars. In the course of this work, the main focus is - the study of AD CMI, a Cepheid variable star. Cepheids are a type of variable star that pulsates radially, varying in both diameter and temperature.
This work aims to provide an overview of stars, with a particular emphasis on variable stars, using AD CMI as an illustrative subject. The brightness of AD CMI varies within a magnitude range of 9.596 to 9.284 over its variable period. Within a three-hour period, it is observed that the magnitude of AD CMI is periodic.
The process of this complete work included several night sky observations using telescopes and cameras and post-processing of the images. It also involved performing photometric methods and data analysis in Python at the end of it. Data for verification of the observational data was taken from AAVSO website. Furthermore, this study results in the creation of a light curve representing the variability of AD CMI by plotting brightness against time. After performing a sine curve fitting, this plot facilitates the extraction of crucial attributes such as amplitude, frequency, and phase of AD CMI's variable behaviour.
After going through some references, we observed that this particular aspect of AD CMI has not been studied extensively. These discoveries offer valuable insights into the complex nature of these mysterious celestial entities. Moreover, this study provides useful tools and methods to better understand these cosmic phenomena. If this work is done with more complex celestial objects, it may open new doors to gain a more detailed understanding of the universe and the stars within it. |
