As part of the Astrophysics Mission of Opportunity element of NASA’s Explorers program, NICER’s main scientific objective is to precisely measure the size and mass of several pulsars.

With NICER we can probe the nature of these dense remnants in ways that seemed impossible until now. J0030 revolves 205 times per second.

This is the first time that such surface features have been positively identified on a pulsar.

From its perch on the exterior of the International Space Station, the Neutron star Interior Composition Explorer, or NICER, looks for X-rays from extreme astronomical objects, such as pulsars.

Jan 1, 2018 - Explore Min Khant's board "Pulsar map" on Pinterest.–MdCSg, Support us at

Source: Focus on NICER Constraints on the Dense Matter Equation of State.

Pulsars are unimaginably dense; their gravity actually warps nearby space-time, the “fabric” of the universe as described by Einstein’s general theory of relativity. Image via Goddard Space Flight Center/ NASA. The University of Amsterdam team believes the pulsar has one small, circular spot and one thin, crescent-shaped spot spinning around its lower latitudes. However, the new NICER studies of J0030 (a millisecond pulsar that revolves 205 times per second) showed that pulsars aren’t that simple. Primordial Black Holes, Episode 687: Open Space 89: Scott Gaudi and the HabEx Mission, Episode 685: Open Space 88: UFO Culture with Author Sarah Scoles.

Your email address is used to log in and will not be shared or sold. In the second, they found a possible third hotspot located around the pulsar’s southern rotational pole. Those stats aren’t surprising. And More…, Episode 688: Remnants From the Early Universe.

The new pulsar map suggests that pulsar magnetic fields are more complicated than anyone knew. And More…, Episode 691: Interview: Seth Shostak from the SETI Institute, Episode 690: The Opposition of Mars with Ralph Crewe, Episode 689: Open Space 90: Could We Drill for Life on Mars? 22:07 What is a galactic halo? Like us on Facebook: 17:50 Could we find debris in the Lagrange Points? 00:00 Start But thanks to NICER’s detailed data, open-source tools, high-performance computers and great teamwork, we now have a framework for developing more realistic models of these objects. Want to be part of the questions show?, Astronomy Cast: J0030’s is oriented with its northern hemisphere pointed toward Earth. The effect is so pronounced that light coming from the side facing away from the observer is bent and redirected towards them.

The researchers – two groups of scientists – used NICER observations from July 2017 to December 2018, and came up with similar results for the size and mass of the pulsar, as well as hot spots on its surface. | Simulation of a possible quadrupole magnetic field configuration – 2 pairs of oppositely charged poles – for a pulsar with hot spots only in its southern hemisphere. As predicted by Einstein’s General Theory of Relativity, a pulsar is so dense that its gravity warps the very fabric of space-time around it.

Both teams arrived at a picture that is not what they expected. Neither result is the simple picture astronomers expected, indicating that the pulsar’s magnetic field, which causes the hotspots, is likely even more complex than originally assumed. The pulsar map is not just for flaunting your knowledge and adoration of space; the pulsar map is a beautiful, geometric design that does not give off an imposing message.

While the result certainly leaves astronomers wondering, “It tells us NICER is on the right path to help us answer an enduring question in astrophysics: What form does matter take in the ultra-dense cores of neutron stars?” NICER science lead and study co-author Zaven Arzoumanian said in a press release.

From Earth, the two teams had a clear view of J0030’s northern hemisphere and expected to find one hotspot there. (Credit: NASA’s Goddard Space Flight Center/CI Lab), 6 Citizen Science Projects to Explore Outer Space at Home, There Are Probably Four Rocky Planets in the Habitable Zones of Nearby Sun-like Stars, Says NASA, The Horsehead Nebula in Orion: An Unbridled Look, Earth’s Biggest Telescopes Reopen After Months of COVID Closures, 5 NASA Spacecraft That Are Leaving Our Solar System for Good, The Big Freeze: How the Universe Will Die.

Going fast! And it is roughly 16 miles (26 kilometers) wide.

One of the research teams, led by Thomas Riley, a doctoral student in computational astrophysics, and his supervisor Anna Watts, a professor of astrophysics at the University of Amsterdam, found that the pulsar is about 1.3 times the sun’s mass and 15.8 miles (25.4 km) across. Using a revolutionary X-ray telescope aboard the International Space Station, scientists have finally created the 1st pulsar surface "map." The result challenges astronomers’ textbook picture of a pulsar’s appearance and opens the door to learning more about these extreme objects. The Shroud of Turin: Created by Miracle or Medieval Forgers? The first team was led by Thomas Riley and his supervisor Anna Watts, a doctoral student in computational astrophysics and a professor of astrophysics (respectively) at the University of Amsterdam. Read our privacy policy.

Their immense gravity bends space-time around them, giving us a glimpse at the far side of the pulsar, even as they rotate out of view. This Winter’s Double Whammy of Pandemic Blues and Seasonal Depression, How Tech Firms Have Tried to Stop Disinformation and Voter Intimidation — and Come up Short. To recreate the X-ray signals they observed, Riley and his colleagues conducted simulations of overlapping circles of different sizes and temperatures using the Dutch national supercomputer Cartesius.

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