57 Tau, a δ Scuti Star in Binary System in the Hyades

2000 ◽  
pp. 243-252
Author(s):  
Margit Paparó ◽  
Eloy Rodriguez ◽  
Zoltán Kolláth
Keyword(s):  
Binary System ◽  
Scuti Star

scholarly journals Detection of a classical δ Scuti star in the new eclipsing binary system HIP 7666

2005 ◽  
Vol 434 (3) ◽  
pp. 1063-1068 ◽  
Author(s):  
E. Escolà-Sirisi ◽  
J. Juan-Samsó ◽  
J. Vidal-Sáinz ◽  
P. Lampens ◽  
E. García-Melendo ◽  
...  
Keyword(s):  
Binary System ◽  
Eclipsing Binary ◽  
Scuti Star

scholarly journals The first high-amplitude   Scuti star in an eclipsing binary system

2007 ◽  
Vol 382 (1) ◽  
pp. 239-244 ◽  
Author(s):  
J. L. Christiansen ◽  
A. Derekas ◽  
M. C. B. Ashley ◽  
J. K. Webb ◽  
M. G. Hidas ◽  
...  
Keyword(s):  
Binary System ◽  
High Amplitude ◽  
Eclipsing Binary ◽  
Scuti Star

scholarly journals CoRoT target HD 51844: a δ Scuti star in a binary system with periastron brightening

2013 ◽  
Vol 9 (S301) ◽  
pp. 59-62 ◽  
Author(s):  
Markus Hareter ◽  
Margit Paparó
Keyword(s):  
Binary System ◽  
Light Curve ◽  
Radial Velocity ◽  
Frequency Analysis ◽  
Significant Variation ◽  
Orbital Motion ◽  
The Other ◽  
Physical Parameters ◽  
Reflected Light ◽  
Scuti Star

AbstractThe star HD 51844 was observed in the CoRoT LRa02 as a target in the seismology field, which turned out to be an SB2 system. The 117-day light curve revealed δ Scuti pulsations in the range of 6 to 15 d−1 where four frequencies have amplitudes larger than 1.4 mmag, and a rich frequency spectrum with amplitudes lower than 0.6 mmag. Additionally, the light curve exhibits a 3-mmag brightening event recurring every 33.5 days with a duration of about 5 days. The radial velocities from spectroscopy confirmed that the star is an eccentric binary system with nearly identical masses and physical parameters. The brightening event in the light curve coincides with the maximum radial-velocity separation showing that the brightening is in fact caused by tidal distortion and/or reflected light. One component displays large line-profile variations, while the other does not show significant variation. The frequency analysis revealed a quintuplet structure of the four highest-amplitude frequencies, which is due to the orbital motion of the pulsating star.

High temperature 27Al NMR time resolved study. Application to the CaO-Al2O3 binary system

1995 ◽  
Vol 92 ◽  
pp. 1871-1876 ◽  
Author(s):  
B Touzo ◽  
D Trumeau ◽  
D Massiot ◽  
I Farnan ◽  
JP Coutures
Keyword(s):  
High Temperature ◽  
Binary System ◽  
27Al Nmr ◽  
Time Resolved ◽  
Study Application

Non-standard methods for converting numbers from one number system to another

2020 ◽  
Vol 1 (9) ◽  
pp. 28-30
Author(s):  
D. M. Zlatopolski
Keyword(s):  
Binary System ◽  
Maximum Degree ◽  
Number System ◽  
Binary Form ◽  
Binary Number ◽  
Standard Methods ◽  
Optimal Variant ◽  
Decimal System ◽  
Large Numbers ◽  
Independent Work

The article describes a number of little-known methods for translating natural numbers from one number system to another. The first is a method for converting large numbers from the decimal system to the binary system, based on multiple divisions of a given number and all intermediate quotients by 64 (or another number equal to 2n ), followed by writing the last quotient and the resulting remainders in binary form. Then two methods of mutual translation of decimal and binary numbers are described, based on the so-called «Horner scheme». An optimal variant of converting numbers into the binary number system by the method of division by 2 is also given. In conclusion, a fragment of a manuscript from the beginning of the late 16th — early 17th centuries is published with translation into the binary system by the method of highlighting the maximum degree of number 2. Assignments for independent work of students are offered.

Excess Thermo Acoustic Parameters in 1,4-Dioxane With 1-Pentanol Binary System

2012 ◽  
Vol 3 (6) ◽  
pp. 415-418
Author(s):  
Anil Kumar K ◽  
◽  
Dr Srinivasu Ch Dr Srinivasu Ch
Keyword(s):  
Binary System ◽  
Acoustic Parameters
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