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  1. Is the angular size of the black hole in the movie "interstellar ...

    Oct 15, 2020 · I assume everybody is tired of reading questions derived from the movie Interstellar, I will try to keep this short and simple: In general in movies, in order to have stunning visuals, celestial …

  2. How does interstellar matter density vary? - Astronomy Stack Exchange

    The interstellar medium is a multiphase medium, and you can find (some references in this lecture and in this thesis manuscript (this one is in French, but numbers are international)): the hot ionized …

  3. What is the difference between gas and dust in astronomy?

    The temperature of interstellar medium seems to range mostly between 10 and 10 000 Kelvin. Is gas/dust an analog for hot/cold, or does the phase diagram of the element in question matter too?

  4. Why is the interstellar medium so hot? - Astronomy Stack Exchange

    The difference in density is huge, with interstellar medium density at an average of $\rho ∼ 1\ ppcm$ (one proton per cubic centimeter), but the density of these WHIM being even a few orders of …

  5. interstellar medium - Why does dust affect UV light more severe than it ...

    7 My supervisor told me that the UV photons emitted from AGN are heavily affected by ISM (dust extinction), but not X-rays, as described in Extinction - a powerful discriminator of dust size. Since X …

  6. What are the differences between Intergalactic Medium, Interstellar ...

    Oct 29, 2021 · The interstellar medium (ISM) is, as you say, the gas (and dust) in between the stars, within a galaxy. It consists of molecular, neutral and ionized gas, with densities ranging from $\sim …

  7. Solar-system origin of interstellar bodies (like 1I/ʻOumuamua)?

    Jul 6, 2025 · I understand that 1I/ʻOumuamua and the other two bodies (2I/Borisov and 3I/ATLAS) are classified as interstellar objects based on their distance from the Sun and their speed. In other words …

  8. interstellar medium - Why are there no ISM clouds with temperatures ...

    In the interstellar medium, there are several different diffuse phases of gas, distinguished by their density and temperature. Specifically, the cold neutral medium has temperatures from ~50-100 K ...

  9. How cold is interstellar space? - Astronomy Stack Exchange

    Jun 2, 2016 · The density of the interstellar medium is so very, very low that radiation losses completely dominate over conduction from the medium. The interstellar medium can be very hot precisely …

  10. Interstellar Dust properties - Astronomy Stack Exchange

    Mar 15, 2021 · While practicing for an upcoming examination, I ran into this problem: Which of the following best describes dust grains in the interstellar medium: They are a few hundred nanometers …