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david heble
Lives in Sevilla, España
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david heble

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Good morning
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Anna LeMind
 
Hawking works on a theory based on gravitational waves and their role in the beginning of time. These waves, if they do exist, can be more powerful evidence than the Higgs Boson.
Hawking works on a theory based on gravitational waves and their role in the beginning of time. These waves, if they do exist, can be more powerful evidence...
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david heble

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autentico e inimitable
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Creo que se asustó un poquito el gato, jajaja....
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lol
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Brian Koberlein
 
Kissing Cousins

In the constellation of Camelopardalis (also known as the Giraffe) is a faint star known as MY Cam. It appears faint because it is about 13,000 light years away, but its spectrum showed that it was actually a blue supergiant. Then recently, detailed measurements indicated that it was a spectroscopic binary consisting of two blue supergiants. Now a new paper in Astronomy & Astrophysics has revealed that the two stars orbit very, very closely.

In analyzing the binary, the team found it had an orbital period of a bit more than a day. They also found that the masses of the two stars were about 38 and 32 solar masses. Given their masses and orbital periods, the two stars must be close enough to share a common envelope. In other words, the two stars are basically touching, and their outer layers are connected.

What makes this discovery particularly interesting is that these stars are also quite young (about two million years old). This means they must have formed very close to each other. Binary stars such as this have been proposed as a way to form hypergiant stars, and this discovery gives support to this idea.

Of course the big question is what will happen when they merge? Will it produce a supernova-like explosion, or will the resulting hypergiant star stabilize quickly. We’ll just have to wait and see.

Paper: J. Lorenzo, et al. MY Camelopardalis, a very massive merger progenitor. A&A 572, A110 (2014)
In the constellation of Camelopardalis (also known as the Giraffe) is a faint star known as MY Cam. It appears faint because it is about 13,000 light years away, but its spectrum showed that it was actually a blue supergiant. Then recently, detailed measurements indicated that it was a spectroscopic binary consisting of two blue supergiants. Now a new paper in Astronomy & Astrophysics has revealed that the two stars orbit very, very closely.
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david heble

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Follow me on Instagram @missfishcatcher One of my favorite shots taken from atop of the Empire State Building. Taken with a Nikon D7100 with a Sigma 10-20mm at 10mm 1/4sec f/3.5 ISO 250 #cityscape   #nycphotography   #nyc   #empirestatebuilding   #manhattan   #landscape   #newyork   #newyorkcity   #newyorkcityphotography   #newyorktimes   #nightphotography   #nightlife   #skyscraper  
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good phótoshop
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My Home . . . Monsoon Magic, Kabini, #India   
by Suresh Kulur

Kabini is home of herds of Elephants, Gaur, Chital, Sambar and Barking Deer, Sloth Bears and Langur. Crocodiles and over a hundred species of birds and the elusive Cats, the Leopard and Tiger. Once widely known for the mass elephant-trapping operations called 'Khedda', Kabini stands as the one of the brightest beacons for wildlife preservation in India today.
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¿Qué alimentos deberíamos tomar para tener una sonrisa perfecta?
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; ¿Por qué viene bien el queso? Es una fuente importante de calcio, necesario tanto para los huesos como para los dientes. Otro de los beneficios que aporta es que mientras lo comemos producimos más saliva y esta tiene una gran cantidad de propiedades bactericidas.
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Way after sunset classic view at Pehoe lodge at Lago Pehoe with Torres Del Paine, Chilean Patagonia
#pehoe   #lagopehoe   #chilie   #patagonia   #torresdelpaine   #torresdelpainenationalpark   #pehorlodge   #cuernos   #glebtarro   #fotowalk  
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