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Your search keyword '"Howell, D."' showing total 107 results

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Start Over You searched for: Author "Howell, D." Remove constraint Author: "Howell, D." Topic astrophysics - cosmology and nongalactic astrophysics Remove constraint Topic: astrophysics - cosmology and nongalactic astrophysics
107 results on '"Howell, D."'

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1. SN 2022jli: a type Ic supernova with periodic modulation of its light curve and an unusually long rise

2. AT2022aedm and a new class of luminous, fast-cooling transients in elliptical galaxies

3. No plateau observed in late-time near-infrared observations of the underluminous Type Ia supernova 2021qvv

4. Search for gravitational-lensing signatures in the full third observing run of the LIGO-Virgo network

5. Search for subsolar-mass black hole binaries in the second part of Advanced LIGO's and Advanced Virgo's third observing run

6. SALT3-NIR: Taking the Open-Source Type Ia Supernova Model to Longer Wavelengths for Next-Generation Cosmological Measurements

7. A new measurement of the Hubble constant using Type Ia supernovae calibrated with surface brightness fluctuations

8. Gravity and Light: Combining Gravitational Wave and Electromagnetic Observations in the 2020s

9. Strong Dependence of Type Ia Supernova Standardization on the Local Specific Star Formation Rate

10. Correcting for peculiar velocities of Type Ia Supernovae in clusters of galaxies

11. Using late-time optical and near-infrared spectra to constrain Type Ia supernova explosion properties

12. The ESO's VLT Type Ia supernova spectral set of the final two years of SNLS

13. A gravitational-wave standard siren measurement of the Hubble constant

14. Extreme magnification of a star at redshift 1.5 by a galaxy-cluster lens

15. A Type II Supernova Hubble diagram from the CSP-I, SDSS-II, and SNLS surveys

16. On the early-time excess emission in hydrogen-poor superluminous supernovae

17. Early observations of the nearby type Ia supernova SN 2015F

18. On the nature of Hydrogen-rich Superluminous Supernovae

19. SN 2015bn: a detailed multi-wavelength view of a nearby superluminous supernova

20. Comparative Analysis of SN 2012dn Optical Spectra: Days -14 to +114

21. DES14X3taz: A Type I Superluminous Supernova Showing a Luminous, Rapidly Cooling Initial Pre-Peak Bump

22. Flash Spectroscopy: Emission Lines from the Ionized Circumstellar Material around $<10$-Day-Old Type II Supernovae

23. Type II supernova energetics and comparison of light curves to shock-cooling models

24. Rapidly Rising Transients in the Supernova - Superluminous Supernova Gap

25. On type IIn/Ia-CSM supernovae as exemplified by SN 2012ca

26. Strong Ultraviolet Pulse From a Newborn Type Ia Supernova

27. SN 2013ab : A normal type IIP supernova in NGC 5669

28. Strong near-infrared carbon in the Type Ia supernova iPTF13ebh

29. Time-Varying Potassium in High-Resolution Spectra of the Type Ia Supernova 2014J

30. The Rising Light Curves of Type Ia Supernovae

31. Type Ia Supernova Spectral Features in the Context of Their Host Galaxy Properties

32. Exploring the spectral diversity of low-redshift Type Ia supernovae using the Palomar Transient Factory

33. Super-luminous supernovae from PESSTO

34. The rise of SN2014J in the nearby galaxy M82

35. Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples

36. The Host Galaxies of Type Ia Supernovae Discovered by the Palomar Transient Factory

37. The Very Young Type Ia Supernova 2013dy: Discovery, and Strong Carbon Absorption in Early-Time Spectra

38. The superluminous supernova PS1-11ap: bridging the gap between low and high redshift

39. Slowly fading super-luminous supernovae that are not pair-instability explosions

40. The Man Behind the Curtain: X-rays Drive the UV through NIR Variability in the 2013 AGN Outburst in NGC 2617

41. Two superluminous supernovae from the early universe discovered by the Supernova Legacy Survey

42. The first month of evolution of the slow rising type II-P SN 2013ej in M74

43. A statistical analysis of circumstellar material in Type Ia supernovae

44. Hubble Space Telescope spectra of the type Ia supernova SN2011fe: a tail of low-density, high-velocity material with Z<Zsolar

45. Super Luminous Ic Supernovae: catching a magnetar by the tail

46. Type Ia Supernovae Strongly Interacting with Their Circumstellar Medium

47. Late-Time Spectral Observations of the Strongly Interacting Type Ia Supernova PTF11kx

48. PESSTO monitoring of SN 2012hn: further heterogeneity among faint type I supernovae

49. Discovery and Early Multi-Wavelength Measurements of the Energetic Type Ic Supernova PTF12gzk: A Massive-Star Explosion in a Dwarf Host Galaxy

50. Studying the Diversity of Type Ia Supernovae in the Ultraviolet: Comparing Models with Observations

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