Cooling of Compact Stars with Quark-Hadron Mixed Phase in the Colour Superconductive State

2010 ◽  
Author(s):  
Tsuneo Noda ◽  
Masa-aki Hashimoto ◽  
Nobutoshi Yasutake ◽  
Toshiki Maruyama ◽  
Toshitaka Tatsumi ◽  
...  
Keyword(s):  
Mixed Phase ◽  
Compact Stars ◽  
Superconductive State

scholarly journals Charge screening effect on hadron-quark mixed phase in compact stars

2006 ◽  
Author(s):  
Tomoki Endo ◽  
Toshiki Maruyama ◽  
Satoshi Chiba ◽  
Toshitaka Tatsumi
Keyword(s):  
Mixed Phase ◽  
Compact Stars ◽  
Screening Effect ◽  
Charge Screening

scholarly journals Properties of a hyperon–quark mixed phase in compact stars

2008 ◽  
Vol 35 (10) ◽  
pp. 104076 ◽  
Author(s):  
Toshiki Maruyama ◽  
Satoshi Chiba ◽  
Hans-Josef Schulze ◽  
Toshitaka Tatsumi
Keyword(s):  
Mixed Phase ◽  
Compact Stars

scholarly journals COOLING OF COMPACT STARS WITH COLOR SUPERCONDUCTING PHASE IN QUARK-HADRON MIXED PHASE

2013 ◽  
Vol 765 (1) ◽  
pp. 1 ◽  
Author(s):  
Tsuneo Noda ◽  
Masa-aki Hashimoto ◽  
Nobutoshi Yasutake ◽  
Toshiki Maruyama ◽  
Toshitaka Tatsumi ◽  
...  
Keyword(s):  
Superconducting Phase ◽  
Mixed Phase ◽  
Compact Stars

scholarly journals MIXED PHASE IN COMPACT STARS: M–R RELATIONS AND RADIAL OSCILLATIONS

2004 ◽  
Vol 13 (07) ◽  
pp. 1197-1205
Author(s):  
ASHOK GOYAL
Keyword(s):  
Neutron Stars ◽  
Recent Observation ◽  
Accurate Determination ◽  
Mixed Phase ◽  
Compact Stars ◽  
Quark Stars ◽  
Physical Laboratory ◽  
Low Mass ◽  
Relationship Of

It is believed that quark stars or neutron stars with mixed phase in the core have smaller radii compared to ordinary compact stars. With the recent observation of several low radius objects, typically a radius of <10 km for star of mass <1 M⊙ in low mass X-ray binaries (LMXB), it has become very important to understand the nature of these objects. An accurate determination of the mass–radius relationship of these objects provide us with a physical laboratory to study the composition of high density matter and the nature of phase transition. We study the effect of quark and nuclear matter mixed phase on the mass radius relationship and radial oscillations of neutron stars. We find that the effect of the mixed phase is to decrease the maximum mass of a stable neutron star and to decrease the radial frequencies.

scholarly journals Systematic study on the quark-hadron mixed phase in compact stars

2020 ◽  
Vol 102 (2) ◽  
Author(s):  
Cheng-Jun Xia ◽  
Toshiki Maruyama ◽  
Nobutoshi Yasutake ◽  
Toshitaka Tatsumi ◽  
Hong Shen ◽  
...  
Keyword(s):  
Systematic Study ◽  
Mixed Phase ◽  
Compact Stars

scholarly journals Model of the Phase Transition Mimicking the Pasta Phase in Cold and Dense Quark-Hadron Matter

2018 ◽  
Vol 173 ◽  
pp. 03003 ◽  
Author(s):  
Alexander Ayriyan ◽  
Hovik Grigorian
Keyword(s):  
Phase Transition ◽  
Neutron Stars ◽  
Quark Matter ◽  
Mixed Phase ◽  
Compact Stars ◽  
Phase Model ◽  
Model Parameters

A simple mixed phase model mimicking so-called “pasta” phases in the quarkhadron phase transition is developed and applied to static neutron stars for the case of DD2 type hadronic and NJL type quark matter models. The influence of the mixed phase on the mass-radius relation of the compact stars is investigated. Model parameters are chosen such that the results are in agreement with the mass-radius constraints.

CONTRACEPTION BY AN INJECTABLE LONG-ACTING OESTROGEN-PROGESTOGEN AGENT. III

1972 ◽  
Vol 69 (1) ◽  
pp. 67-76
Author(s):  
Rolf Plesner
Keyword(s):  
Treatment Period ◽  
Treatment Cycle ◽  
Post Treatment ◽  
Mixed Phase ◽  
Discontinuation Of Treatment ◽  
Phase Type ◽  
Secretory Type ◽  
Pre Treatment ◽  
Long Acting ◽  
Fertile Women

ABSTRACT Twenty-two fertile women were treated cyclically in from 4–30 cycles (mean 15.5) with a total of 341 injections of Deladroxate®, an injectable, long-acting oestrogen-progestogen. The injections were administered on the 8th (7th–9th) day of each cycle. Before treatment, the last pre-treatment cycle was controlled by means of daily recordings of the basal body temperature (BBT), urinary excretion of pregnanediol and total pituitary gonadotrophins at certain intervals, and by endometrial biopsies obtained late in the cycle. The effects of Deladroxate® on ovulation, on pituitary gonadotrophic function, and on the endometrium were controlled by the above mentioned parameters during cycles 1, 3, and 6, and all assessments were repeated after discontinuation of treatment. During treatment, there was a statistically significant fall in gonadotrophin excretion values (as compared with the pre-treatment values), and the fall was found to be gradually progressive during treatment. After discontinuation of treatment, there seemed to be a tendency towards an increase in the excretion values. Suppression of ovulation as determined by means of the pregnanediol excretion during treatment, was effective in nearly all of the treatment cycles checked. The fall in pregnanediol excretion was also gradually progressive during treatment, while there was a slight increase in excretion values in the post-treatment period. During treatment, 79 BBT curves were recorded. Nearly 50 % were monophasic, indicating anovulatory cycles, 17 curves were biphasic, but with the rise in temperature occurring at non-characteristic times in the cycles, 18 curves were classified as thermogenic because of a rise in temperature occurring within 24 hours after the injection, and 5 curves were not assessable. During the first month after discontinuation of treatment, 8 out of 10 recorded curves were monophasic. Out of 53 endometrial biopsies obtained around the 23rd day of the cycle, 31 were of the mixed phase type, but showing a predominance of proliferative patterns, 15 were of the secretory type, and 7 were purely proliferative. Out of 15 biopsies obtained in the post-treatment period, only two were of the mixed phase type, 12 were proliferative and one was purely secretory.

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