Ultraviolet Extinction Properties in the Milky Way

Abstract

We have assembled a homogeneous database of 417 ultraviolet (UV) extinction curves for reddened sightlines having International Ultraviolet Explorer (IUE) spectra. We have combined these with optical and 2MASS photometry allowing estimates of the ratio of total-to-selective extinction, R(V), for the entire sample. Fitzpatrick-Massa (FM) parameters have also been found for the entire sample. This is the largest study of parameterized UV extinction curves yet published and it covers a wide range of environments, from dense molecular clouds to the diffuse interstellar medium (ISM), with extinctions A(V) ranging from 0.50 to 4.80. It is the first to extend far beyond the solar neighborhood and into the Galaxy at large, with 30 sightlines having distances > 5 kpc. Previously, the longest sightlines with FM parameters and R(V) extended ~ 1 kpc. We find that (1.) the CCM extinction law applies for 93% of the sightlines, implying that dust processing in the Galaxy is efficient and systematic; (2.) the central wavelength of the 2175 A bump is constant; (3.) the 2175 A bump width is dependent on environment. Only four sightlines show systematic deviations from CCM, HD 29647, 62542, 204827, and 210121. These sightlines all sample dense, molecule-rich clouds. The new extinction curves and values of R(V) allow us to revise the CCM law.

32 pages, 12 figures

Cited by in corpus (121)

• An Analysis of the Shapes of Interstellar Extinction Curves. V. The IR-Through-UV Curve Morphology
• The Dust Attenuation Law in Distant Galaxies: Evidence for Variation with Spectral Type
• An Analysis of the Shapes of Interstellar Extinction Curves. VII. Milky Way Spectrophotometric Optical-through-Ultraviolet Extinction and Its R-Dependence
• Ultraviolet Survey of CO and H_2 in Diffuse Molecular Clouds: The Reflection of Two Photochemistry Regimes in Abundance Relationships
• The Dust Attenuation Law in Galaxies
• The Optical-Infrared Extinction Curve and its Variation in the Milky Way
• Average Extinction Curves and Relative Abundances for QSO Absorption Line Systems at 1 <= z_abs < 2
• One Relation for All Wavelengths: The Far-Ultraviolet to Mid-Infrared Milky Way Spectroscopic R(V) Dependent Dust Extinction Relationship
• Dust and Gas in the Magellanic Clouds from the HERITAGE Herschel Key Project. I. Dust Properties and Insights into the Origin of the Submm Excess Emission
• Direct Measurement of the Ratio of Carbon Monoxide to Molecular Hydrogen in the Diffuse Interstellar Medium
• FUSE Measurements of Far-Ultraviolet Extinction. III. The Dependence on R(V) and Discrete Feature Limits from 75 Galactic Sightlines
• The Far Ultraviolet Spectroscopic Explorer Survey of OVI Absorption in the Disk of the Milky Way
• Observational Constraints on the Physical Properties of Interstellar Dust in the Post-Planck Era
• GMASS ultradeep spectroscopy of galaxies at z ~ 2. IV. The variety of dust populations
• The Reddening of Red Supergiants: When Smoke Gets In Your Eyes
• Cepheid Calibrations of Modern Type Ia Supernovae:Implications for the Hubble Constant
• Milky Way Mid-Infrared Spitzer Spectroscopic Extinction Curves: Continuum and Silicate Features
• Planck intermediate results. XXI. Comparison of polarized thermal emission from Galactic dust at 353 GHz with interstellar polarization in the visible
• The Homogeneity of Interstellar Elemental Abundances in the Galactic Disk
• Diffuse interstellar bands in Upper Scorpius: Probing variations in the DIB spectrum due to changing environmental conditions
• SpeX near-infrared spectroscopic extinction curves in the Milky Way
• An Analysis of the Shapes of Ultraviolet Extinction Curves. IV. Extinction without Standards
• Photometry of the Type Ia Supernovae 1999cc, 1999cl, and 2000cf
• The Panchromatic Hubble Andromeda Treasury XV. The BEAST: Bayesian Extinction and Stellar Tool
• Hubble Space Telescope Survey of Interstellar ^12CO/^13CO in the Solar Neighborhood
• Monster in the Dark: The Ultraluminous GRB 080607 and its Dusty Environment
• Properties of Diffuse Interstellar Bands at Different Physical Conditions of the ISM
• Properties of extragalactic dust inferred from linear polarimetry of Type Ia Supernovae
• Interstellar CN and CH+ in Diffuse Molecular Clouds: 12C/13C Ratios and CN Excitation
• Large Metallicity Variations in the Galactic Interstellar Medium
• The ESO Diffuse Interstellar Bands Large Exploration Survey: EDIBLES I. Project description, survey sample and quality assessment
• Understanding and reducing statistical uncertainties in nebular abundance determinations
• Ultraviolet Extinction at High Galactic Latitudes
• New Ultraviolet Extinction Curves for Interstellar Dust in M31
• The Composition of Interstellar Grains Toward Zeta Ophiuchi: Constraining the Elemental Budget Near the Diffuse-Dense Cloud Transition
• Atomic and Molecular Carbon as a Tracer of Translucent Clouds
• From interstellar abundances to grain composition: the major dust constituents Mg, Si and Fe
• Diffuse Interstellar Bands vs. Known Atomic and Molecular Species in the Interstellar Medium of M82 toward SN 2014J
• Interstellar extinction and interstellar polarization: old and new models
• HST Imaging of Decoupled Dust Clouds in the Ram Pressure Stripped Virgo Spirals NGC 4402 and NGC 4522
• Probing the Role of Carbon in the Interstellar Ultraviolet Extinction
• The extinction law inside the 30 Doradus nebula
• Properties of dust in early-type galaxies
• Revealing the dust attenuation properties on resolved scales in NGC628 with SWIFT UVOT data
• METAL: The Metal Evolution, Transport, and Abundance in the Large Magellanic Cloud Hubble program. I. Overview and Initial Results
• A Probabilistic Approach to Classifying Supernovae Using Photometric Information
• Large Interstellar Polarisation Survey. LIPS I: FORS2 spectropolarimetry in the Southern Hemisphere
• Binary Central Stars of Planetary Nebulae Discovered Through Photometric Variability V: The Central Stars of HaTr 7 and ESO 330-9
• FUSE Measurements of Far Ultraviolet Extinction. I. Galactic Sight Lines
• Interstellar polarization and grain alignment: the role of iron and silicon
• The EDIBLES survey IV. Cosmic ray ionization rates in diffuse clouds from near-ultraviolet observations of interstellar OH${}^{+}$
• Determining the extragalactic extinction law with SALT
• The EDIBLES survey III. C2-DIBs and their profiles
• A New FUSE Survey of Interstellar HD
• Mapping the Escape Fraction of Ionizing Photons Using Resolved Stars: A Much Higher Escape Fraction for NGC 4214
• The Panchromatic Hubble Andromeda Treasury. VII. The Steep Mid-Ultraviolet to Near-Infrared Extinction Curve in the Central 200 pc of the M31 Bulge
• Linear/circular spectropolarimetry of diffuse interstellar bands
• The C${}^{14}$N/C${}^{15}$N Ratio in Diffuse Molecular Clouds
• Observational Evidence Linking Interstellar UV Absorption to PAH Molecules
• How Well Can We Measure Galaxy Dust Attenuation Curves? The Impact of the Assumed Star-Dust Geometry Model in SED Fitting
• Diffuse Interstellar Bands and the Ultraviolet Extinction Curves: The Missing Link Revisited
• GRB 050408: An Atypical Gamma-Ray Burst as a Probe of an Atypical Galactic Environment
• Astrophysical Parameters from Gaia DR2, 2MASS & AllWISE
• Interstellar extinction and polarization -- A spheroidal dust grain approach perspective
• A Mature Dusty Star-forming Galaxy Hosting GRB080607 at z=3.036
• Interstellar Iron and Silicon Depletions in Translucent Sight Lines
• Modelling interstellar extinction and polarization with spheroidal grains
• XMM-Newton monitoring of the close pre-main-sequence binary AK Sco. Evidence of tide driven filling of the inner gap in the circumbinary disk
• Observational Properties of Rotationally Excited Molecular Hydrogen In Translucent Lines of Sight
• MUSE stares into the shadows: the high-resolution dust attenuation curve of NGC 5626
• Interstellar Silicon Depletion and the Ultraviolet Extinction
• HD 62542: Probing the Bare, Dense Core of a Translucent Interstellar Cloud
• Binary Central Stars of Planetary Nebulae Discovered Through Photometric Variability III: The Central Star of Abell 65
• Interstellar Extinction and Elemental Abundances
• Large Interstellar Polarisation Survey II. UV/optical study of cloud-to-cloud variations of dust in the diffuse ISM
• AK Sco, first detection of a highly disturbed atmosphere in a pre-main sequence close binary
• Dark Dust and single-cloud sightlines in the ISM
• Dark dust II: Properties in the general field of the diffuse ISM
• Relations between mid-IR dust emission and UV extinction
• Measuring Extinction Curves of Lensing Galaxies
• Astrometric Gravitational-Wave Detection via Stellar Interferometry
• Interstellar Extinction and Elemental Abundances: Individual Sight Lines
• Constraints to the magnetospheric properties of T Tauri stars. I. The C II], Fe II] and Si II] ultraviolet features
• Linking stellar populations to HII regions across nearby galaxies. II. Infrared Reprocessed and UV Direct Radiation Pressure in HII Regions
• Interstellar communication. X. The colors of optical SETI
• Spatial structure of several diffuse interstellar band carriers
• Constraints to the magnetospheric properties of T Tauri stars - II. The Mg II ultraviolet feature
• Constraints on interstellar dust models from extinction and spectro-polarimetry
• Modeling anomalous extinction using nanodiamonds
• The scattering and extinction properties of nanodiamonds
• The extinction properties of long GRB host galaxies from H and He I recombination lines
• The Angular Separation of the Components of the Cepheid AW Per
• A microquasar model applied to unidentified gamma-ray sources
• A Reexamination of Phosphorus and Chlorine Depletions in the Diffuse Interstellar Medium
• Far-ultraviolet Dust Extinction and Molecular Hydrogen in the Diffuse Milky Way Interstellar Medium
• Dust properties along anomalous extinction sightlines. II. Studying extinction curves with dust models
• Evidence of hot high velocity photoionized plasma falling on actively accreting T-Tauri Stars
• The 2175 Angstrom Interstellar Extinction Bump: Is the Wavelength Variable?
• UV Extinction as a More Fundamental Measure of Dust than E(B-V) or A(V)
• Diffuse Atomic and Molecular Gas near IC443
• Dark Dust III: The high-quality single-cloud reddening curve sample. Scrutinizing extinction curves in the Milky Way
• The grey extinction of the ionizing cluster in NGC 3603 from ultraviolet to optical wavelengths
• Constraints on the dust extinction law of the Galaxy with Swift/UVOT, Gaia and 2MASS
• Measuring Dust Attenuation Curves of SINGS/KINGFISH Galaxies Using Swift/UVOT Photometry
• Far-infrared emission of massive stars
• Dust in the Local Group
• What causes the ultraviolet extinction bump at the cosmic dawn?
• Interstellar Dust models towards some IUE stars
• Modelling dust extinction in the Magellanic Clouds
• Silicon and iron dust in gamma-ray burst host galaxy absorbers
• Quantitative spectroscopy of multiple OB stars: I. The quadruple system HD 37061 at the centre of Messier 43
• Polarization position angle standard stars: a reassessment of $\theta$ and its variability for seventeen stars based on a decade of observations
• A Color-locus Method for Mapping $R_V$ Using Ensembles of Stars
• A Catalog of Stellar and Dust Properties for 500,000 Stars in the Southwest Bar of the Small Magellanic Cloud
• On the relationship between the continuum of interstellar extinction curves, the 2200 Å bump, and the diffuse interstellar bands
• Investigating chemical variations between interstellar gas clouds in the Solar neighbourhood
• A Correction for GALEX Spectroscopic UV Flux Distributions from Comparisons with CALSPEC and IUE
• Rescuing the Initial Mass Function for Arp 78
• Large Interstellar Polarisation Survey. III. Observational constraints on the structure of grains
• Connecting the dusty dots: dust depletion and extinction of local interstellar clouds
• A Detailed Analysis of Intermediate-scale Structure in Optical Extinction Curves: Expanded Census and Two-family Classification