NDLI: Improved orbit for the visual-binary star 40/41 Dra

Content Provider	Springer Nature Link
Author	Afanasyeva, A. A. Grosheva, E. A.
Copyright Year	2012
Abstract	Families of orbits of the visual binary star 40/41 Dra (ADS 11061), a near-polar visual binary star (αJ2000 =18h00m; δJ2000; δJ2000 = +80°00′ ) which is a wide pair in the neighborhood of the sun ( πt = 19mas ), are calculated. Both components are spectrally binary and belong to the late spectral classes K2V and F7. The orbit was determined using a data base of photographic observations of this visual binary at the Pulkovo 26-inch refractor from 1970 through 2006. The latest spectroscopic data on the radial velocities and masses of the components are used in calculating the orbital elements. The family of orbits of 40/41 Dra was determined by the method of apparent motion parameters (AMP method) developed by Kiselev. The photographic plates were digitized and measured automatically for the first time. The parameters of the apparent motion were improved and the range of acceptable values for the true distances between the components was narrowed. The family of orbits was obtained by minimizing the O-C differences. The calculations are compared with the previously calculated family of orbits. The results of the measurements have been entered into the “Pulkovo Database of Observations of Visual Double Stars.”
Starting Page	231
Ending Page	241
Page Count	11
File Format	PDF
ISSN	05717256
Journal	Astrophysics
Volume Number	55
Issue Number	2
e-ISSN	15738191
Language	English
Publisher	Springer US
Publisher Date	2012-06-20
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	binary stars, radial velocities, determination of orbits individual, ADS 11061, 40/41 Dra Astrophysics and Astroparticles Extraterrestrial Physics, Space Sciences Astronomy, Observations and Techniques Astronomy, Astrophysics and Cosmology
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics

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

Orbit determination and estimate of the component masses

LUT observations of the mass-transferring binary AI Dra

A runaway binary star escaping from the Θ1 ori system

Photoelectric Radial Velocities, Paper XVIII Spectroscopic Orbits for Another 52 Binaries in the Hyades Field

Contributions of the Pulkovo and Kharkiv Scientific Schools to the search for exoplanets and low-mass dark satellites of stars

Starspot and flare activity of the dwarf system CM Dra

Photoelectric Radial Velocities, Paper XX 45 Years’ Monitoring of the Radial Velocities of the Redman K Stars

Spectral observations of the eclipsing binary RY Sct

New Radial Velocities for Dwarf Galaxies in the Local Volume

Improved orbit for the visual-binary star 40/41 Dra

Similar Documents

Orbit determination and estimate of the component masses

LUT observations of the mass-transferring binary AI Dra

A runaway binary star escaping from the Θ1 ori system

Photoelectric Radial Velocities, Paper XVIII Spectroscopic Orbits for Another 52 Binaries in the Hyades Field

Contributions of the Pulkovo and Kharkiv Scientific Schools to the search for exoplanets and low-mass dark satellites of stars

Starspot and flare activity of the dwarf system CM Dra

Photoelectric Radial Velocities, Paper XX 45 Years’ Monitoring of the Radial Velocities of the Redman K Stars

Spectral observations of the eclipsing binary RY Sct

New Radial Velocities for Dwarf Galaxies in the Local Volume

Improved orbit for the visual-binary star 40/41 Dra