Madhu Kashyap Jagadeesh

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• PhD
• Assistant Professor at St. Joseph's College of Bangalore

Study of exoplanets is one of the main goals of present research in planetary sciences and astrobiology. Analysis of huge planetary data from space missions such as CoRoT and Kepler is directed ultimately at finding a planet similar to Earth—the Earth’s twin, and answering the question of potential exo-habitability. The Earth Similarity Index (ESI)...

Finding life on other worlds is a fascinating area of astrobiology and planetary sciences. Presently, over 3500 exoplanets, representing a very wide range of physical and chemical environments, are known. Tardigrades (water bears) are microscopic invertebrates that inhabit almost all terrestrial, freshwater and marine habitats, from the highest mou...

Habitability has been generally defined as the capability of an environment to support life. Ecologists have been using Habitat Suitability Models (HSMs) for more than four decades to study the habitability of Earth from local to global scales. Astrobiologists have been proposing different habitability models for some time, with little integration...

Classical Be stars (CBe) in open clusters older than 100 Myr are identified. The objective is to study their characteristics relating to age, spectral type and evolutionary state. This study compliments with that of Mathew et al. (2008), where they identified and characterized emission-line stars in open clusters younger than 100 Myr. For this rese...

This is the first spectroscopic study of CBe stars in open clusters older than 100 Myr. We performed the optical spectroscopy of 16 classical Be stars in 11 open clusters older than 100 Myr. Among these 16 stars, we identified 15 stars from our previous slitless spectroscopy study. The remaining one, LS III +47 37b, is a new detection, which is con...

We performed the slitless spectroscopic survey to identify Classical (CBe) stars in open clusters older than 100 Myr. Observing a sample of 71 open clusters, we identified 13 CBe stars in 11 open clusters, one of, which (TYC 2679-432-1) is a new detection. The 13 CBe stars show both H$\alpha$ in emission and IR excess, which confirm that they posse...

We performed the slitless spectroscopic survey to identify classical Be (CBe) stars in open clusters older than 100 Myr. Observing a sample of 71 open clusters, we identified 13 CBe stars in 11 open clusters, one of, which (TYC 2679-432-1) is a new detection. The 13 CBe stars show both Ha in emission and IR excess, which confirm that they possess g...

We performed the slitless spectroscopic survey to identify classical Be (CBe) stars in open clusters older than 100 Myr. Observing a sample of 71 open clusters, we identified 13 CBe stars in 11 open clusters, one of, which (TYC 2679-432-1) is a new detection. The 13 CBe stars show both H\(\alpha \) in emission and IR excess, which confirm that they...

Habitability has been generally defined as the capability of an environment to support life. Ecologists have been using Habitat Suitability Models (HSMs) for more than four decades to study the habitability of Earth from local to global scales. Astrobiologists have been proposing different habitability models for some time, with little integration...

Habitability has been generally defined as the capability of an environment to support life. Ecologists have been using Habitat Suitability Models (HSMs) for more than four decades to study the habitability of Earth from local to global scales. Astrobiologists have been proposing different habitability models for some time, with little integrati...

Habitability has been generally defined as the capability of an environment to support life. Ecologists have been using Habitat Suitability Models (HSMs) for more than four decades to study the habitability of Earth from local to global scales. Astrobiologists have been proposing different habitability models for some time, with little integration...

The search for different life forms elsewhere in the universe is a fascinating area of research in astrophysics and astrobiology. Currently, according to the NASA Exoplanet Archive database, 3876 exoplanets have been discovered. The Earth Similarity Index (ESI) is defined as the geometric mean of radius, density, escape velocity, and surface temper...

The search for different life forms elsewhere in the universe is a fascinating area of research in astrophysics and astrobiology. Currently, according to the NASA Exoplanet Archive database, 3876 exoplanets have been discovered. The Earth Similarity Index (ESI) is defined as the geometric mean of radius, density, escape velocity, and surface temper...

Pollution has become a major threat in almost all metropolitan cities around the world. Currently, atmospheric scientists are working on various models that could help us understand air pollution. In this paper, we have formulated a new metric tool called Delhi Similarity Index (DSI). The DSI is defined as the geometrical mean of the trace gases su...

Finding life on other worlds is a fascinating area of astrobiology and planetary sciences. Presently, over 3800 exoplanets, representing a very wide range of physical and chemical environments, are known. Scientists are not only looking for traces of life outside Earth, but they are also trying to find out which of Earth's known organisms (ex: tard...

The recent development, shows that the Bray-Curtis's formula for similarity Index (1957), has been applied in various fields like Ecology, Astrophysics, etc. In this paper, we found the possible boundary conditions for this evolved formula (i.e. the numerical range in which the formula becomes in-effective to give the expected result). Here we have...

Search of life elsewhere in the galaxy is very fascinating area for planetary scientists and astrobiologists. Earth Similarity Index (ESI) is defined as geometrical mean of four physical parameters (Such as radius, density, escape velocity and surface temperature), which is ranging from 1 (identical to Earth) to 0 (dissimilar to Earth). In this wor...

Acoustic waves are those waves which travel with the speed of sound through a medium. H. Lamb (1909, 1910) had derived a cutoff frequency for stratified and isothermal medium for the propagation of acoustic waves. In order to find the cutoff frequency many methods were introduced after Lamb's work. In this paper, we have chosen the turning point fr...

Search of life elsewhere in the galaxy is very fascinating area for planetary scientists and astrobiologists. Earth Similarity Index (ESI) is defined as geometrical mean of four physical parameters (Such as radius, density, escape velocity and surface temperature), which is ranging from 1 (identical to Earth) to 0 (dissimilar to Earth). In this wor...

Exoplanet habitability-Current and future research

Study of exoplanets has been of considerable interest for Astronomers, Planetary Scientists and Astrobiologists. Analysis of huge planetary data from space missions such as CoRoT and Kepler is directed ultimately at finding a planet similar to Earth- the Earth's twin, and looking for potential habitability. The Earth Similarity Index (ESI) is defin...

Search for different life-forms elsewhere is the fascinating area of research in astrophysics and astrobiology. Nearly 3500 exoplanets are discovered according to NASA exoplanet archive database. Earth Similarity Index (ESI) is defined as the geometrical mean of radius, density, escape velocity and surface temperature, ranging from 0 (dissimilar to...

Acoustic waves are those waves which travel with the speed of sound through a medium. H. Lamb (1909, 1910) had derived a cutoff frequency for stratified and isothermal medium for the propagation of acoustic waves. In order to find the cutoff frequency many methods were introduced after Lamb's work. In this paper, we have chosen the turning point fr...

Earth Similarity Index (ESI) is defined as geometrical mean of radius, density, surface temperature and escape velocity of planets, that ranges from 1 (Earth) to 0 (dissimilar to Earth). Here we have established the calibration between surface and equilibrium temperatures of exoplanets. Also introduced a new approach called Mars Similarity Index (M...

https://sciencetrends.com/finding-earth-2-0-mars-2-0-using-earth-similarity-index-mars-similarity-index/

The Relativistic spinning sphere model which invokes the magnetic self energy of elementary particles masses is well-studied. In this research, the electromagnetic mass of electron from lepton family is connected with the electromagnetic mass of kaon from meson family using the above model. In turn the result of the theoretical kaon radii is obtain...

Finding life on other planets and/or moons is a fascinating area in astrobiology and planetary sciences. Up to now almost 3500 exoplanets have been found (https://exoplanetarchive. ipac.caltech.edu/docs/counts_detail.html). They represent very wide range of physical and chemical conditions. Tardigrada (water bears) are microscopic invertebrates inh...

It is known, that some microorganisms like bacteria, Archaea, algae or fungi can survive in harsh conditions which are present on other planets and/or moons (e.g. on Mars). But would it be also possible in respect of higher organisms, like animals? More precisely, a microscopic invertebrates - tardigrades? Mars, with almost lack of atmosphere, very...

Electromagnetic mass of the elementary particle is known for electron. The electromagnetic mass of the pion has been determined here by connecting the relation of the masses of the elementary particles with the fine structure constant. The result here correlates to the magnetic self-energy of the lepton (electron) and the meson (pion) by means of r...

Electromagnetic mass of the elementary particle is well-known for electron. The electromagnetic mass of the pion has been determined here by establishing the relation of the masses of the elementary particles with the fine structure constant. The result here correlates to the magnetic self-energy of the lepton (electron) and the meson (pion) by mea...

The Electromagnetic Mass of the Elementary Particle is well-known for an electron. Using the fine structure constant (alpha ), we have established the relationship between the electromagnetic mass of and with correspondence to its radius respectively. According to the principles of relativistic spinning sphere model and the magnetic self energy of...

Acoustic waves are those waves which travel with the speed of sound through a medium. H. Lamb has derived a cutoff frequency for stratified and isothermal medium for the propagation of acoustic waves. In order to find the cutoff frequency many methods were introduced after Lamb's work. In this paper, we have chosen the method to determine cutoff fr...

Study of exoplanets is one of the main goals of present research in planetary sciences and astrobiology. Analysis of huge planetary data from space missions such as CoRoT and Kepler is directed ultimately at finding a planet similar to Earth -- the Earth's twin, and answering the question of potential exo-habitability. The Earth Similarity Index (E...

Our initial goal was to find the approximate probabilistic number for GHZ which has four factors in it. But in our time constraint we could calculate only two factors and we have described the measuring technique of other two factors.

Electromagnetic mass of the elementary particle is well-studied for the electron. Here the electromagnetic mass of the tauon is calculated by invoking the relation of the masses of the elementary particles with the fine structure constant. Our result relates to the magnetic self-energy of the two leptons (electron and tauon).

Electromagnetic mass of the elementary particle is well-understood for the electron. Now, we can build a relationship between electromagnetic mass of tau and its radius with the help of fine structure constant. The result will be based on the magnetic self-energy of the two leptons (electron and tau) with the help of relativistic spinning sphere mo...

The earth is surrounded by five gaseous layers which is constrained by earth's gravitational pull. Acoustic waves travel with the speed of sound through a medium.H.Lamb few years ago has derived cutoff frequency for stratified and isothermal medium.In order to find the cutoff frequency for non-isothermal medium many methods were introduced.But, in...

Electromagnetic mass of the elementary particle is well-studied for the electron. Here the electromagnetic mass of the muon is calculated by invoking the relation of the masses of the elementary particles with the fine structure constant. Our result relates to the magnetic self-energy of the two leptons (electron and muon) using relativistic spinni...