In order to determine the density of white dwarfs and other stars I used a database and created several relations, such as mass/volume of different star types, to create comparable dana, the values of rotation, the percentage of the objects orbiting around a central object and the explanation how different speeds of rotation, if unused, influence the irregular derivation of the gravitational results. Some other factors, essential in creating real values in astrophysics, are also analyzed here. The results acquired in such a way reveal a real image, which is impossible to perceive if analysing only a small or limited quantity of stars and other objects. It doesn't work without a larger sequence of relations of different parameters. The rese...
In this article, we present an investigation of a sample of 1072 stars extracted from the Villanova...
This thesis explores the photometric variability in isolated magnetic white dwarfs (MWDs) to search ...
This is a pre-copyedited, author-produced PDF of an article accepted for publication in "Monthly Not...
The sharp Hα NLTE line cores of hydrogen-rich (DA) white dwarfs allow their projected rotational vel...
We present time-series photometry of 30 isolated magnetic white dwarfs, surveyed with the Jacobus Ka...
An analysis is made of a complete sample of hot white dwarfs, identified spectroscopically from cand...
textWe measure apparent velocities (v_app) of the H alpha and H beta Balmer line cores for 449 non-b...
Context. Kinematic and chemical tagging of stellar populations have both revealed much information o...
The distribution of white dwarf rotation periods provides a means for constraining angular momentum ...
I argue that magnetic torques inside stars are likely to maintain a state of approximately uniform r...
Abstract. This is a very brief report on an ongoing program aimed at mapping the internal rotation p...
There are ~1.5 billion sources with parallaxes and proper motions in Gaia EDR3. When investigating v...
Despite the prevalence of M dwarfs, the smallest and most common type of main sequence star, their s...
We present the kinematical properties, distribution of spectroscopic subtypes, and stellar populatio...
We perform stellar evolution calculations for stars in the mass range 1 . . . 3M⊙, including the phy...
In this article, we present an investigation of a sample of 1072 stars extracted from the Villanova...
This thesis explores the photometric variability in isolated magnetic white dwarfs (MWDs) to search ...
This is a pre-copyedited, author-produced PDF of an article accepted for publication in "Monthly Not...
The sharp Hα NLTE line cores of hydrogen-rich (DA) white dwarfs allow their projected rotational vel...
We present time-series photometry of 30 isolated magnetic white dwarfs, surveyed with the Jacobus Ka...
An analysis is made of a complete sample of hot white dwarfs, identified spectroscopically from cand...
textWe measure apparent velocities (v_app) of the H alpha and H beta Balmer line cores for 449 non-b...
Context. Kinematic and chemical tagging of stellar populations have both revealed much information o...
The distribution of white dwarf rotation periods provides a means for constraining angular momentum ...
I argue that magnetic torques inside stars are likely to maintain a state of approximately uniform r...
Abstract. This is a very brief report on an ongoing program aimed at mapping the internal rotation p...
There are ~1.5 billion sources with parallaxes and proper motions in Gaia EDR3. When investigating v...
Despite the prevalence of M dwarfs, the smallest and most common type of main sequence star, their s...
We present the kinematical properties, distribution of spectroscopic subtypes, and stellar populatio...
We perform stellar evolution calculations for stars in the mass range 1 . . . 3M⊙, including the phy...
In this article, we present an investigation of a sample of 1072 stars extracted from the Villanova...
This thesis explores the photometric variability in isolated magnetic white dwarfs (MWDs) to search ...
This is a pre-copyedited, author-produced PDF of an article accepted for publication in "Monthly Not...