NDLI: Using the reduced proper motions of Tycho-2 stars with B-V from 0.75 to 1.25: Monte Carlo simulations

Content Provider	Springer Nature Link
Author	Gontcharov, G. A.
Copyright Year	2009
Abstract	The stellar composition of the Tycho-2 Catalogue in the range B-V = 0 · m 75–1 · m 25 has been reproduced through Monte Carlo simulations. For young and old stars of the red giant clump (RGC), the red giant branch, subgiants, red dwarfs, and thick-disk giants, we have specified the distributions in coordinates, velocities, B-V, and M $_{ V }$ as a function of B-V and calculated their reduced proper motions, photometric distances from the (B-V)-M $_{ V }$ calibration, and photoastrometric distances from the reduced proper motion-M $_{ V }$ calibration. Our simulations have shown the following: (1) a sample of thin-disk giants within 500 pc with an admixture of less than 10% of other stars can be produced; (2) a sample of dwarfs within 100 pc almost without any admixture of other stars can be produced; (3) the Local Spiral Arm affects the RGC composition of any magnitude-limited catalog in favor of giants younger than 2 Gyr; (4) the samples produced using reduced proper motions can be used for kinematic studies, provided that the biases of the quantities being determined are simulated and taken into account; (5) the photometric distances correlate with the photoastrometric ones because of the correlation between the proper motion and magnitude; (6) the photometric distances are closer to the true ones for the red giant branch and red dwarfs as the categories of stars with a clear (B-V)-M $_{ V }$ relation, while the photoastrometric distances are closer to the true ones for the RGC, subgiants, and thick-disk giants; (7) the calculated distances differ systematically from the true ones, but they can be used to analyze the three-dimensional distribution of stars. Our simulations confirm the validity of our previous selection of RGC stars from Tycho-2.
Starting Page	638
Ending Page	650
Page Count	13
File Format	PDF
ISSN	10637737
Journal	Astronomy Letters
Volume Number	35
Issue Number	9
e-ISSN	15626873
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2009-09-11
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Galaxy (Milky Way) spiral arms stellar classification types of stars color-magnitude diagram for stars Astrophysics and Astroparticles Astronomy, Observations and Techniques
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Using the reduced proper motions of Tycho-2 stars with B-V from 0.75 to 1.25: Monte Carlo simulations

Red giant clump in the Tycho-2 catalogue

OB stars in the Tycho-2 and 2MASS catalogues

The red giant branch in the Tycho-2 catalogue

Kinematic control of the inertiality of the system of Tycho-2 and UCAC2 stellar proper motions

Influence of the gould belt on interstellar extinction

Kinematics of Tycho-2 red giant clump stars

Investigation of the Galactic bar based on photometry and stellar proper motions

Classical Cepheids and the spiral structure of the milky way

Using the reduced proper motions of Tycho-2 stars with B-V from 0.75 to 1.25: Monte Carlo simulations

Similar Documents

Using the reduced proper motions of Tycho-2 stars with B-V from 0.75 to 1.25: Monte Carlo simulations

Red giant clump in the Tycho-2 catalogue

OB stars in the Tycho-2 and 2MASS catalogues

The red giant branch in the Tycho-2 catalogue

Kinematic control of the inertiality of the system of Tycho-2 and UCAC2 stellar proper motions

Influence of the gould belt on interstellar extinction

Kinematics of Tycho-2 red giant clump stars

Investigation of the Galactic bar based on photometry and stellar proper motions

Classical Cepheids and the spiral structure of the milky way

Using the reduced proper motions of Tycho-2 stars with B-V from 0.75 to 1.25: Monte Carlo simulations