Confirming Interstellar C60+ Using the Hubble Space Telescope

  title={Confirming Interstellar C60+ Using the Hubble Space Telescope},
  author={Martin A. Cordiner and Harold Linnartz and Nick L. J. Cox and Jan Cami and Francisco Najarro and Charles R. Proffitt and R. Lallement and Pascale Ehrenfreund and Bernard H. Foing and Theodore R. Gull and Peter Sarre and Steven B. Charnley},
  journal={The Astrophysical Journal Letters},
Recent advances in laboratory spectroscopy lead to the claim of ionized Buckminsterfullerene (C ) as the carrier of two diffuse interstellar bands (DIBs) in the near-infrared. However, irrefutable identification of interstellar C requires a match between the wavelengths and the expected strengths of all absorption features detectable in the laboratory and in space. Here we present Hubble Space Telescope (HST) spectra of the region covering the C 9348, 9365, 9428, and 9577 Å absorption bands… 

Figures and Tables from this paper

The diffuse interstellar band around 8620 Å
Context. Diffuse interstellar bands (DIBs) are interstellar absorption features that widely exist in the optical and near-infrared wavelength range. DIBs play an important role in the lifecycle of
Are the carriers of diffuse interstellar bands and extended red emission the same?
We report the first spectroscopic observations of a background star seen through the region between the ionization front and the dissociation front of the nebula IC 63. This photodissociation region
Galactic extinction laws – II. Hidden in plain sight, a new interstellar absorption band at 7700 Å broader than any known DIB
We have detected a broad interstellar absorption band centred close to 7700 A and with a FWHM of 176.6$\pm$3.9 A. This is the first such absorption band detected in the optical range and is
Diffuse Bands 9577 and 9633: Relations to Other Interstellar Features
We study, for the first time, the relations of two strong diffuse bands (DIBs) at 9633 and 9577 Å, commonly attributed to , to other interstellar features seen in optical and UV spectra including H
Diffuse Interstellar Bands
The paper presents a review of the observational investigations of the diffuse interstellar bands (DIBs) which, despite being the object of considerable research, remain unidentified since 1921. The
Synthesis and Spectroscopy of Buckminsterfullerene Cation C60+ in a Cryogenic Ion Trapping Instrument
The assignment of several diffuse interstellar bands in the near-infrared to C60+ ions present at high abundance in space has renewed interest in the astrochemical importance of fullerenes and
Probing the missing link between the diffuse interstellar bands and the total-to-selective extinction ratio $R_V\,\!-\!$ I. Extinction versus reddening
The carriers of the still (mostly) unidentified diffuse interstellar bands (DIBs) have been a long-standing mystery ever since their first discovery exactly 100 yr ago. In recent years, the
Mapping local interstellar medium with diffuse interstellar bands
With the use of the data from archives, we studied the correlations between the equivalent widths of four diffuse interstellar bands (4430$A$, 5780$A$, 5797$A$, 6284$A$) and properties of the target
Survey of Very Broad Diffuse Interstellar Bands
This paper considers a very special set of a few interstellar features—broad diffuse interstellar bands (DIBs) at 4430, 4882, 5450, 5779, and 6175 ÅÅ. The set is small, and measurements of equivalent


Searching for Interstellar Using a New Method for High Signal-to-noise HST/STIS Spectroscopy
Due to recent advances in laboratory spectroscopy, the first optical detection of a very large molecule has been claimed in the diffuse interstellar medium (ISM): (ionized Buckminsterfullerene).
The EDIBLES survey II. The detectability of C60+ bands
Gas phase spectroscopic laboratory experiments for the buckminsterfullerene cation C60+ have resulted in accurate rest wavelengths for five C60+ transitions that have been compared with diffuse
Detection of two interstellar absorption bands coincident with spectral features of C60+
MORE than a hundred well-defined absorption bands, arising from diffuse gas in the interstellar medium, have been observed in the visible and near-infrared spectra of stars 1–4. The identity of the
and the Diffuse Interstellar Bands: An Independent Laboratory Check
In 2015, Campbell et al. presented spectroscopic laboratory gas phase data for the fullerene cation, , that coincide with the reported astronomical spectra of two diffuse interstellar band (DIB)
Based on gas-phase laboratory spectra at 6 K, Campbell et al. confirmed that the diffuse interstellar bands (DIBs) at 9632.7 and 9577.5 Å are due to absorption by the fullerene ion C 60 + . ?> They
On the identification of the C+60 interstellar features
The identity of the carriers of the diffuse interstellar bands (DIBs) is one of the most fascinating puzzles of modern spectroscopy. Over the last few years the number of known DIBs has grown
Laboratory confirmation of C60+ as the carrier of two diffuse interstellar bands
The diffuse interstellar bands are absorption lines seen towards reddened stars. None of the molecules responsible for these bands have been conclusively identified. Two bands at 9,632 ångströms and
Interstellar C 60
Buckminsterfullerene (C 60 ) has recently been detected through its infrared emission b ands in the interstellar medium (ISM), including in the proximity of massive stars, where physical condit ions
C60+ – looking for the bucky-ball in interstellar space
The laboratory gas phase spectrum recently published by Campbell et al. has reinvigorated attempts to confirm the presence of the C$_{60}^+$ cation in the interstellar medium, thorough an analysis of
Recent low-temperature laboratory measurements and astronomical observations have proved that the fullerene cation is responsible for four diffuse interstellar bands (DIBs). These absorptions