The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster — A Chandra HETGS Legacy Project

Kavli Affiliate: David A. Principe | First 5 Authors: Norbert S. Schulz, David P. Huenemoerder, David A. Principe, Marc Gagne, Hans Moritz Günther | Summary: The Orion Nebula Cluster (ONC) is the closest site of very young ($sim$ 1 Myrs) massive star formation. The ONC hosts more than 1600 young and X-ray bright stars with […]


Continue.. The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster — A Chandra HETGS Legacy Project

The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster — A Chandra HETGS Legacy Project

Kavli Affiliate: David P. Huenemoerder | First 5 Authors: Norbert S. Schulz, David P. Huenemoerder, David A. Principe, Marc Gagne, Hans Moritz Günther | Summary: The Orion Nebula Cluster (ONC) is the closest site of very young ($sim$ 1 Myrs) massive star formation. The ONC hosts more than 1600 young and X-ray bright stars with […]


Continue.. The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster — A Chandra HETGS Legacy Project

The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster — A Chandra HETGS Legacy Project

Kavli Affiliate: Norbert S. Schulz | First 5 Authors: Norbert S. Schulz, David P. Huenemoerder, David A. Principe, Marc Gagne, Hans Moritz Günther | Summary: The Orion Nebula Cluster (ONC) is the closest site of very young ($sim$ 1 Myrs) massive star formation. The ONC hosts more than 1600 young and X-ray bright stars with […]


Continue.. The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster — A Chandra HETGS Legacy Project

Planet Hunters TESS V: a planetary system around a binary star, including a mini-Neptune in the habitable zone

Kavli Affiliate: Avi Shporer | First 5 Authors: Nora L. Eisner, Samuel K. Grunblatt, Oscar Barragán, Thea H. Faridani, Chris Lintott | Summary: We report on the discovery and validation of a transiting long-period mini-Neptune orbiting a bright (V = 9.0 mag) G dwarf (TOI 4633; R = 1.05 RSun, M = 1.10 MSun). The […]


Continue.. Planet Hunters TESS V: a planetary system around a binary star, including a mini-Neptune in the habitable zone

Current laboratory performance of starlight suppression systems, and potential pathways to desired Habitable Worlds Observatory exoplanet science capabilities

Kavli Affiliate: Sara Seager | First 5 Authors: Bertrand Mennesson, Ruslan Belikov, Emiel Por, Eugene Serabyn, Garreth Ruane | Summary: We summarize the current best polychromatic (10 to 20 % bandwidth) contrast performance demonstrated in the laboratory by different starlight suppression approaches and systems designed to directly characterize exoplanets around nearby stars. We present results […]


Continue.. Current laboratory performance of starlight suppression systems, and potential pathways to desired Habitable Worlds Observatory exoplanet science capabilities

Chandra HETG X-ray Spectra and Variability of $π$ Aqr, a $γ$ Cas-type Be star

Kavli Affiliate: David P. Huenemoerder | First 5 Authors: David P. Huenemoerder, Pragati Pradhan, Claude R. Canizares, Sean Gunderson, Richard Ignace | Summary: High-resolution X-ray spectra of $pi,$Aqr, a $gamma,$Cas-type star, obtained with the Chandra/HETG grating spectrometer, revealed emission lines of H-like ions of Mg, Si, S, and Fe, a strong, hard continuum, and a […]


Continue.. Chandra HETG X-ray Spectra and Variability of $π$ Aqr, a $γ$ Cas-type Be star

Chandra HETG X-ray Spectra and Variability of $π$ Aqr, a $γ$ Cas-type Be star

Kavli Affiliate: Norbert S. Schulz | First 5 Authors: David P. Huenemoerder, Pragati Pradhan, Claude R. Canizares, Sean Gunderson, Richard Ignace | Summary: High-resolution X-ray spectra of $pi,$Aqr, a $gamma,$Cas-type star, obtained with the Chandra/HETG grating spectrometer, revealed emission lines of H-like ions of Mg, Si, S, and Fe, a strong, hard continuum, and a […]


Continue.. Chandra HETG X-ray Spectra and Variability of $π$ Aqr, a $γ$ Cas-type Be star

Chandra HETG X-ray Spectra and Variability of $π$ Aqr, a $γ$ Cas-type Be star

Kavli Affiliate: Norbert S. Schulz | First 5 Authors: David P. Huenemoerder, Pragati Pradhan, Claude R. Canizares, Sean Gunderson, Richard Ignace | Summary: High-resolution X-ray spectra of $pi,$Aqr, a $gamma,$Cas-type star, obtained with the Chandra/HETG grating spectrometer, revealed emission lines of H-like ions of Mg, Si, S, and Fe, a strong, hard continuum, and a […]


Continue.. Chandra HETG X-ray Spectra and Variability of $π$ Aqr, a $γ$ Cas-type Be star

Confronting the Diversity Problem: The Limits of Galaxy Rotation Curves as a tool to Understand Dark Matter Profiles

Kavli Affiliate: Lina Necib | First 5 Authors: Isabel S. Sands, Philip F. Hopkins, Xuejian Shen, Michael Boylan-Kolchin, James Bullock | Summary: While galaxy rotation curves provide one of the most powerful methods for measuring dark matter profiles in the inner regions of rotation-supported galaxies, at the dwarf scale there are factors that can complicate […]


Continue.. Confronting the Diversity Problem: The Limits of Galaxy Rotation Curves as a tool to Understand Dark Matter Profiles

Super-resolution imaging based on active optical intensity interferometry

Kavli Affiliate: Frank Wilczek | First 5 Authors: Lu-Chuan Liu, Cheng Wu, Wei Li, Yu-Ao Chen, Frank Wilczek | Summary: Long baseline diffraction-limited optical aperture synthesis technology by interferometry plays an important role in scientific study and practical application. In contrast to amplitude (phase) interferometry, intensity interferometry — which exploits the quantum nature of light […]


Continue.. Super-resolution imaging based on active optical intensity interferometry