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http://archives.christuniversity.in/disk0/00/00/63/54/01/Binder_Vrinda_Mukundan_1235209.pdf

Optical and Infrared Photometric Study of Pre-Main Sequence Stars in Young Open Cluster NGC 7419 Young Open Cluster NGC 7419

The embryonic stage of development of stars has been a field of astrophysics which still pose many unresolved queries. The problem is largely due to the solitary nature of embryonic stars. Even the largest optical telescopes were not able to reveal many details about such stars as they are formed deep inside molecular cloud thorough which optical wavelength cannot pass through. Forbidding distances to such stars is an added problem. However, recently, this field is slowly turning into observational science. Even though optical radiations fail to reach the destination, longer wavelength infrared (IR) radiations can penetrate through such dusty region. These infrared radiations have been known for decades. But it is only during very recent times that infrared telescopes that have very high sensitivity and resolution came in to scenario. So now the astronomers are able to observe these stellar embryos. Studies about this stage of star formation can help us to solve many questions like how the birth of a star takes place, how these stars accrete matter into it from surroundings, when will this accretion stops, why do some stars have planetary systems around them etc. Current study is an attempt to look for the presence of these embryonic stars in an open cluster using infrared data and to get more details on nature of those stellar embryos. We investigate the properties of young stars and their circumstellar disks in young open cluster NGC 7419. The pre-determined V magnitude and B magnitude of these stars are combined with infrared data from 2MASS J,H, K and 4 band WISE data. The color-color diagrams are made using these 9 bands to identify young stellar objects. The individual SED fitting is done for these identified stars and parameters like their age, mass, temperature, disk radius and disk mass are estimated. These are used to comment on the evolutionary stage of the pre-main sequence stars and their circumstellar disk. Dissertation has been divided into five chapters. Chapter 1 gives a general introduction to the work done. Literatures referred are explained in Chapter 2. Data used in the current study and methodology adopted is described in chapter 3. Current work done on the young stellar objects in cluster NGC 7419 and results obtained from the study are explained in Chapter 4 and Chapter 5 respectively.

http://archives.christuniversity.in/disk0/00/00/63/55/01/Binder.pdf

Mphil

The Experience of Flow among Kathak Dancers

Flow is a state of optimal experience proposed by Mihalyi Csikszentmihalyi (1975). Flow is the holistic experience that people feel when they act with total involvement and is characterized by intense engagement and enjoyment. The flow state has been explored diverse contexts such as art, music, theater, education and sports. The main contribution of flow studies to positive psychology involves adding value, purpose and enjoyment to subjective experience, thereby leading to a richer and intentional life existence. Dance is one such activity that increases enjoyment by integrating ones awareness with oneself and the surroundings. Kathak is a form of North Indian Classical dancing that lays emphasis on speed and rhythm. The present study aims to analyze the experience of flow in the context of Kathak performance. It also seeks to describe the experience of flow by linking challenge in the performance and skill of the dancer, the importance of feedback in performance and the unique competencies that enable a person to enter and maintain the state of flow. Seven Kathak dancers from Bangalore were interviewed in order to analyze how they experience flow. The research paradigm employed was phenomenology and in-depth interviews were used to gather data. Thematic analysis was the technique used in the study to generate themes. The findings of the study state that the dancers perceive Kathak as a challenging dance. The dancers perception of their skills influences their flow experience during performance. The Guru was seen to be an influential person whose feedback was considered valuable. The response from the audience and the dancers own self reflection were also important sources of feedback. The dancers had identified different purposes for performing Kathak. They were all motivated by their inner drives. The dancers also experienced a transformation from their personal selves when they were immersed in the dance. Self-confidence was seen to be an important facilitator of flow whereas anxiety was seen to be a major inhibitor. The results will be able to help dancers understand the importance of optimal experiences during dancing. An awareness of the what facilitates and inhibits flow can lead dancers to intentionally work on having clearer goals, better concentration, less self consciousness and raising the challenge level for themselves. The findings can be applied to dance therapy and also contributes to both research of dance and the relationship between dance and psychology in India. Keywords: Flow, experience, Kathak, challenge, feedback.

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