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Hubble Space Telescope
XMM-Newton Joint Program Information

XMM-Newton Cycle 15/HST Cycle 24
Joint Program Overview

By agreement with the HST Project, the XMM-Newton Project may award up to 30 orbits of HST observing time each observing cycle. Similarly, the HST Project may award up to 150 ks of XMM-Newton time. The time will be awarded only for highly ranked proposals that require the use of both observatories and shall not apply to usage of archival data. The only criterion above and beyond the usual review criteria is that both sets of data are required to meet the primary science goals. Proposers should have taken special care in justifying both the scientific and technical reasons for requesting observing time on both missions. For these solicitations, no HST time will be allocated without the need for XMM-Newton time on the same target to complete the proposed investigation.

For XMM-Newton's Cycle 15 and HST's Cycle 24, the XMM-Newton Observing Time Allocation Committee (OTAC) met in the fall of 2015 and reviewed their proposals. The following four joint XMM-Newton proposals (listed below) have been approved for execution in HST Cycle 24. These observations have been loaded with the current Cycle 23 programs.

The global view of the ionized outflows in NGC 4051

Dr. Elisa Costantini
Space Research Organization Netherlands
Program ID: 14479

We propose to observe the bright active galactic nucleus NGC 4051 for 120 ks jointly with HST and Astro-H. This source hosts one of the most extraordinary multi-phase ionized outflows. For the first time, we will acquire a high-resolution spectrum of the low, medium and highly ionized outflow in a low-mass black hole. We will study the connection between the X-ray and UV absorber and the disk winds mapping the ionization structure, kinematic behavior and relative abundance.

NGC 4051 12 03 9.68 +44 31 52.54 COS/FUV G130M & G160M 4

Joint XMM-Newton and HST study of the magnetic weak- wind O-star HD 54879

Dr. Wolf-Rainer Hamann
Observatoire de Strasbourg
Program ID: 14480

Current massive-star astrophysics struggles with a number of urgent questions: what are the true mass-loss rates, what is the role of magnetic fields, how are X-rays produced? HD54879 provides an important laboratory to study these questions. While a strong magnetic field (2.1 ,kG) has been recently detected in this star, it otherwise exhibits a normal spectrum of O9.7 main sequence type. We propose joint XMM and HST observations of HD54879. Analysis of the UV spectrum will establish the parameters of the cool stellar wind, while from the XMM data the hot plasma component will be studied. The new observations will establish a gauge for stellar wind theory and provide a template X-ray spectrum for magnetic massive stars with weak wind.

HD-54879 07 10 8.1493 -11 48 9.84 STIS/FUV E140M 1

Shining light on obscured AGN outflows

Dr. Jelle Kaastra
Space Research Organization Netherlands
Program ID: 14481

AGN can be obscured by gas streams close to the black hole that shield remote regions from ionising radiation. We witnessed such an event in NGC 5548 where 90% of the soft X-rays are blocked by a dense gas stream close to the BLR. Our joint observations with XMM-Newton, NuSTAR and HST/COS showed UV BAL lines associated with the X-ray absorption and allowed us to characterise this unique obscuration event completely. We propose to investigate a similar event in another Seyfert 1 using the same instruments. Swift monitoring will be used to find the event, which will be characterised by joint ToO observations with XMM-Newton (150 ks), HST/COS (4 orbits) and NuSTAR (50 ks).

UGC-12163 22 42 39.3090 +29 43 31.55 COS/FUV G130M & G160M 2
UGC-12163 22 42 39.3090 +29 43 31.55 COS/FUV G130M & G160M 2

A long, broad and high resolution look at NGC 3783: joint with ASTRO-H

Dr. Jelle Kaastra
Space Research Organization Netherlands
Program ID: 14482

We propose a 160 ks observation of the bright Seyfert 1 galaxy NGC 3783 using XMM-Newton and 2 HST- COS orbits. This will overlap with a 100 ks PV phase observation with Astro-H. We will study the warm absorber in unprecedented detail: enumerate the ionization components, measure outflow speeds, and search for new high ionization components. We will measure the broad-band spectrum more accurately than ever before, which will allow better determination of the broad iron line shape and black hole spin. We will search for variability both within the observation and over historical timescales. These observations will provide the highest spectral resolution over the largest relevant bandwidth; our findings will be applicable to all AGN outflows and broad-band spectra.

NGC-3783 11 39 1.721 -37 44 18.60 COS/FUV G130M & G160M 2

XMM and HST Target of Opportunity Observations of Tidal Disruption Events

Dr. Andrew Levan
The University of Warwick
Program ID: 14483

Tidal disruption events (TDEs), where a star is disrupted while passing close to a black hole, enable a view of accretion onto supermassive objects from quiescence to super-Eddington rates, on a timescale of a few years. Here we propose to characterise the spectral and temporal properties two TDEs found in AO15. As part of a comprehensive multiwavelength campaign we will use XMM-Newton and HST to map either side of the expected hot black-body peak; search for evidence of non-thermal components; track the cooling of the event and study the long and short timescale variability of the sources. In doing so we will create exquisite, panchromatic pictures of these extreme events.

TDE1 TBD TBD WFC3/UVIS F225W & F275W ToO Non-Disruptive 1

A collision reversal in HD5980

Dr. Yael Naze
Universite de Liege
Program ID: 14476

HD 5980 provides a unique laboratory for studying the properties of wind-wind collisions. It contains one of only two binary systems having a WR-star in orbit with a LBV. The latter star has been observed to undergo major changes in its wind structure over the past 35 years, implying changes in the geometry and emitting conditions of the wind-wind collision region. Ten years ago, when the LBV wind was very strong, XMM observations revealed X-ray emission consistent with the shock cone wrapping around the WR component. Since then, the LBV wind strength has significantly declined, implying that the collision shock cone may be inverting its orientation. The objective of this proposal is to obtain X-ray coverage of this never before observed phenomenon.

HD-5980 00 59 26.5687 -72 09 53.91 STIS/FUV E140M 0
HD-5980 00 59 26.5687 -72 09 53.91 STIS/CCD G230LB, G430L, & G750L 2

UV to hard X-ray spectroscopy of the prototype disk wind quasar, PDS 456

Dr. James Reeves
University of Maryland Baltimore County
Program ID: 14477

PDS 456, the most luminous nearby AGN, is now recognised as the prototype ultra fast outflow. Our recent XMM-Newton and NuSTAR campaign on PDS 456 established the presence of a fast (0.3c), wide angle disk wind, sufficient to provide significant mechanical feedback into its host galaxy. The new RGS data have revealed the presence of variable, broad soft X-ray absorption lines from the disk wind, which may be associated to the partial covering absorber. Here we propose for 2x80 ks XMM-Newton observations of PDS 456 and a two orbit HST/COS snapshot which will simultaneously measure the wind in the UV and X-rays. The requested observations will be concurrent with a likely Astro-H observation during 2016. For the first time we will obtain high resolution coverage of the wind from the UV to hard X-rays.

QSO-B1725-142 17 28 19.9 -14 15 56 COS/FUV G140L 2

Catching AGN in Deep Minimum States to Unveil Their Core Environment

Dr. Norbert Schartel
XMM-Newton SOC
Program ID: 14478

The deep minimum state of AGNs is characterized by a strongly suppressed or even absent primary continuum. As the continuum disappears weak spectral features like relativistic iron lines or narrow soft X-ray emission lines from ionised plasmas become highly significant and their parameters can be determined. Therefore deep minimum states offer unique possibilities to investigate in detail the physics of the reprocessed components in AGN, including the immediate vicinity of the supermassive black hole. Applying our experience (several deep minimum observations) we propose 2 triggered 10ks XMM snapshot, one 80ks XMM follow-up simultaneous with one 80ks NuSTAR one 2-orbit HST observation of an AGN in deep minimum state. We will identify deep minimum states mainly based on Swift and XMM-Newton slews.

AGN1-Minimum TBD TBD COS/FUV G130M & G160M 2

The programs approved from the previous XMM Cycle 11-17 TACs can be found at the following links: